11532990 has 32 divisors (see below), whose sum is σ = 31633920. Its totient is φ = 2636064.

The previous prime is 11532977. The next prime is 11532991. The reversal of 11532990 is 9923511.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11532991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27250 + ... + 27669.

It is an arithmetic number, because the mean of its divisors is an integer number (988560).

Almost surely, 2^11532990 is an apocalyptic number.

11532990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11532990 is an abundant number, since it is smaller than the sum of its proper divisors (20100930).

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

11532990 is a wasteful number, since it uses less digits than its factorization.

11532990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54936.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 11532990 is about 3396.0256182779. The cubic root of 11532990 is about 225.9335043360.

The spelling of 11532990 in words is "eleven million, five hundred thirty-two thousand, nine hundred ninety".