117872490 has 64 divisors (see below), whose sum is σ = 289111680. Its totient is φ = 30750720.

The previous prime is 117872473. The next prime is 117872507. The reversal of 117872490 is 94278711.

It is an interprime number because it is at equal distance from previous prime (117872473) and next prime (117872507).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349602 + ... + 349938.

It is an arithmetic number, because the mean of its divisors is an integer number (4517370).

Almost surely, 2^117872490 is an apocalyptic number.

117872490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117872490 is an abundant number, since it is smaller than the sum of its proper divisors (171239190).

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

117872490 is a wasteful number, since it uses less digits than its factorization.

117872490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567.

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 117872490 is about 10856.9097813328. The cubic root of 117872490 is about 490.3100772356.

The spelling of 117872490 in words is "one hundred seventeen million, eight hundred seventy-two thousand, four hundred ninety".