11915090 has 32 divisors (see below), whose sum is σ = 24632640. Its totient is φ = 4104000.

The previous prime is 11915077. The next prime is 11915093. The reversal of 11915090 is 9051911.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11915093) 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, 761 + ... + 4940.

It is an arithmetic number, because the mean of its divisors is an integer number (769770).

Almost surely, 2^11915090 is an apocalyptic number.

11915090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11915090 is an abundant number, since it is smaller than the sum of its proper divisors (12717550).

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

11915090 is a wasteful number, since it uses less digits than its factorization.

11915090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5738.

The product of its (nonzero) digits is 405, while the sum is 26.

The square root of 11915090 is about 3451.8241554285. The cubic root of 11915090 is about 228.4015827143.

The spelling of 11915090 in words is "eleven million, nine hundred fifteen thousand, ninety".