11942920 has 32 divisors (see below), whose sum is σ = 29315520. Its totient is φ = 4342720.

The previous prime is 11942899. The next prime is 11942921. The reversal of 11942920 is 2924911.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11942921) 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, 13132 + ... + 14011.

It is an arithmetic number, because the mean of its divisors is an integer number (916110).

Almost surely, 2^11942920 is an apocalyptic number.

11942920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11942920 is an abundant number, since it is smaller than the sum of its proper divisors (17372600).

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

11942920 is a wasteful number, since it uses less digits than its factorization.

11942920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27165 (or 27161 counting only the distinct ones).

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

The square root of 11942920 is about 3455.8530061332. The cubic root of 11942920 is about 228.5792698203.

Subtracting from 11942920 its reverse (2924911), we obtain a square (9018009 = 3003²).

It can be divided in two parts, 1194 and 2920, that added together give a palindrome (4114).

The spelling of 11942920 in words is "eleven million, nine hundred forty-two thousand, nine hundred twenty".