11982390 has 32 divisors (see below), whose sum is σ = 32866560. Its totient is φ = 2738784.

The previous prime is 11982371. The next prime is 11982401. The reversal of 11982390 is 9328911.

It is a super-2 number, since 2×11982390² = 287155340224200, which contains 22 as substring.

It is a congruent number.

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, 28320 + ... + 28739.

It is an arithmetic number, because the mean of its divisors is an integer number (1027080).

Almost surely, 2^11982390 is an apocalyptic number.

11982390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11982390 is an abundant number, since it is smaller than the sum of its proper divisors (20884170).

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

11982390 is a wasteful number, since it uses less digits than its factorization.

11982390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57076.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 11982390 is about 3461.5588973756. The cubic root of 11982390 is about 228.8308024735.

The spelling of 11982390 in words is "eleven million, nine hundred eighty-two thousand, three hundred ninety".