11172490 has 36 divisors (see below), whose sum is σ = 23549778. Its totient is φ = 3805200.

The previous prime is 11172481. The next prime is 11172527. The reversal of 11172490 is 9427111.

11172490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10055241 + 1117249 = 3171^2 + 1057^2 .

It is a super-3 number, since 3×11172490³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 73915 + ... + 74065.

Almost surely, 2^11172490 is an apocalyptic number.

11172490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11172490 is an abundant number, since it is smaller than the sum of its proper divisors (12377288).

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

11172490 is an equidigital number, since it uses as much as digits as its factorization.

11172490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 11172490 is about 3342.5274867980. The cubic root of 11172490 is about 223.5544529140.

The spelling of 11172490 in words is "eleven million, one hundred seventy-two thousand, four hundred ninety".