11924920 has 32 divisors (see below), whose sum is σ = 30664800. Its totient is φ = 4088448.

The previous prime is 11924911. The next prime is 11924929. The reversal of 11924920 is 2942911.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11924911) and next prime (11924929).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11924929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21015 + ... + 21574.

It is an arithmetic number, because the mean of its divisors is an integer number (958275).

Almost surely, 2^11924920 is an apocalyptic number.

11924920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11924920 is an abundant number, since it is smaller than the sum of its proper divisors (18739880).

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

11924920 is a wasteful number, since it uses less digits than its factorization.

11924920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42607 (or 42603 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 11924920 is about 3453.2477466872. The cubic root of 11924920 is about 228.4643762087.

Subtracting from 11924920 its reverse (2942911), we obtain a square (8982009 = 2997²).

The spelling of 11924920 in words is "eleven million, nine hundred twenty-four thousand, nine hundred twenty".