10921392 has 90 divisors (see below), whose sum is σ = 32306092. Its totient is φ = 3571776.

The previous prime is 10921373. The next prime is 10921403. The reversal of 10921392 is 29312901.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 206038 + ... + 206090.

Almost surely, 2^10921392 is an apocalyptic number.

10921392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10921392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16153046).

10921392 is an abundant number, since it is smaller than the sum of its proper divisors (21384700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10921392 is an frugal number, since it uses more digits than its factorization.

10921392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 10921392 is about 3304.7529408414. The cubic root of 10921392 is about 221.8669765531.

Multiplying 10921392 by its sum of digits (27), we get a square (294877584 = 17172²).

10921392 divided by its sum of digits (27) gives a square (404496 = 636²).

Multiplying 10921392 by its product of nonzero digits (972), we get a square (10615593024 = 103032²).

10921392 divided by its product of nonzero digits (972) gives a square (11236 = 106²).

The spelling of 10921392 in words is "ten million, nine hundred twenty-one thousand, three hundred ninety-two".