11389740 has 96 divisors (see below), whose sum is σ = 34245120. Its totient is φ = 2820096.

The previous prime is 11389723. The next prime is 11389771. The reversal of 11389740 is 4798311.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110529 + ... + 110631.

It is an arithmetic number, because the mean of its divisors is an integer number (356720).

Almost surely, 2^11389740 is an apocalyptic number.

11389740 is a gapful number since it is divisible by the number (10) 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 11389740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17122560).

11389740 is an abundant number, since it is smaller than the sum of its proper divisors (22855380).

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

11389740 is a wasteful number, since it uses less digits than its factorization.

11389740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 11389740 is about 3374.8688863421. The cubic root of 11389740 is about 224.9941726886.

It can be divided in two parts, 1138 and 9740, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 11389740 in words is "eleven million, three hundred eighty-nine thousand, seven hundred forty".