116398990 has 16 divisors (see below), whose sum is σ = 210301920. Its totient is φ = 46385440.

The previous prime is 116398981. The next prime is 116398993. The reversal of 116398990 is 99893611.

It is a self number, because there is not a number n which added to its sum of digits gives 116398990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116398993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18946 + ... + 24325.

It is an arithmetic number, because the mean of its divisors is an integer number (13143870).

Almost surely, 2^116398990 is an apocalyptic number.

116398990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

116398990 is a deficient number, since it is larger than the sum of its proper divisors (93902930).

116398990 is a wasteful number, since it uses less digits than its factorization.

116398990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43547.

The product of its (nonzero) digits is 104976, while the sum is 46.

The square root of 116398990 is about 10788.8363598675. The cubic root of 116398990 is about 488.2584153831.

The spelling of 116398990 in words is "one hundred sixteen million, three hundred ninety-eight thousand, nine hundred ninety".