11872290 has 32 divisors (see below), whose sum is σ = 30170880. Its totient is φ = 2979584.

The previous prime is 11872277. The next prime is 11872303. The reversal of 11872290 is 9227811.

It is an interprime number because it is at equal distance from previous prime (11872277) and next prime (11872303).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11130 + ... + 12149.

It is an arithmetic number, because the mean of its divisors is an integer number (942840).

Almost surely, 2^11872290 is an apocalyptic number.

11872290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11872290 is an abundant number, since it is smaller than the sum of its proper divisors (18298590).

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

11872290 is a wasteful number, since it uses less digits than its factorization.

11872290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23306.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 11872290 is about 3445.6189574589. The cubic root of 11872290 is about 228.1277754088.

The spelling of 11872290 in words is "eleven million, eight hundred seventy-two thousand, two hundred ninety".