11925690 has 64 divisors (see below), whose sum is σ = 33073920. Its totient is φ = 2695680.

The previous prime is 11925677. The next prime is 11925691. The reversal of 11925690 is 9652911.

It is a super-2 number, since 2×11925690² = 284444163952200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11925691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22630 + ... + 23150.

It is an arithmetic number, because the mean of its divisors is an integer number (516780).

Almost surely, 2^11925690 is an apocalyptic number.

11925690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11925690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16536960).

11925690 is an abundant number, since it is smaller than the sum of its proper divisors (21148230).

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

11925690 is a wasteful number, since it uses less digits than its factorization.

11925690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 11925690 is about 3453.3592341371. The cubic root of 11925690 is about 228.4692934683.

The spelling of 11925690 in words is "eleven million, nine hundred twenty-five thousand, six hundred ninety".