11957390 has 16 divisors (see below), whose sum is σ = 21738240. Its totient is φ = 4735200.

The previous prime is 11957381. The next prime is 11957453. The reversal of 11957390 is 9375911.

It is a super-2 number, since 2×11957390² = 285958351224200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11957390.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4910 + ... + 6929.

It is an arithmetic number, because the mean of its divisors is an integer number (1358640).

Almost surely, 2^11957390 is an apocalyptic number.

11957390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11957390 is a deficient number, since it is larger than the sum of its proper divisors (9780850).

11957390 is a wasteful number, since it uses less digits than its factorization.

11957390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11947.

The product of its (nonzero) digits is 8505, while the sum is 35.

The square root of 11957390 is about 3457.9459220757. The cubic root of 11957390 is about 228.6715478430.

The spelling of 11957390 in words is "eleven million, nine hundred fifty-seven thousand, three hundred ninety".