11990356 has 12 divisors (see below), whose sum is σ = 23980768. Its totient is φ = 5138712.

The previous prime is 11990353. The next prime is 11990359. The reversal of 11990356 is 65309911.

It is an interprime number because it is at equal distance from previous prime (11990353) and next prime (11990359).

11990356 is an admirable number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11990353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214086 + ... + 214141.

Almost surely, 2^11990356 is an apocalyptic number.

It is an amenable number.

11990356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11990356 is a wasteful number, since it uses less digits than its factorization.

11990356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428238 (or 428236 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 11990356 is about 3462.7093438520. The cubic root of 11990356 is about 228.8815008281.

The spelling of 11990356 in words is "eleven million, nine hundred ninety thousand, three hundred fifty-six".