21076192 has 72 divisors (see below), whose sum is σ = 45954216. Its totient is φ = 9504768.

The previous prime is 21076189. The next prime is 21076213. The reversal of 21076192 is 29167012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21076192.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 397638 + ... + 397690.

It is an arithmetic number, because the mean of its divisors is an integer number (638253).

Almost surely, 2^21076192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21076192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22977108).

21076192 is an abundant number, since it is smaller than the sum of its proper divisors (24878024).

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

21076192 is a wasteful number, since it uses less digits than its factorization.

21076192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 21076192 is about 4590.8813968562. The cubic root of 21076192 is about 276.2256783321.

It can be divided in two parts, 2107 and 6192, that multiplied together give a square (13046544 = 3612²).

The spelling of 21076192 in words is "twenty-one million, seventy-six thousand, one hundred ninety-two".