116311890 has 16 divisors (see below), whose sum is σ = 279148608. Its totient is φ = 31016496.

The previous prime is 116311813. The next prime is 116311913. The reversal of 116311890 is 98113611.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 3877063 = 116311890 / (1 + 1 + 6 + 3 + 1 + 1 + 8 + 9 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1938502 + ... + 1938561.

It is an arithmetic number, because the mean of its divisors is an integer number (17446788).

Almost surely, 2^116311890 is an apocalyptic number.

116311890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

116311890 is an abundant number, since it is smaller than the sum of its proper divisors (162836718).

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

116311890 is a wasteful number, since it uses less digits than its factorization.

116311890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3877073.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 116311890 is about 10784.7990245530. The cubic root of 116311890 is about 488.1365989769.

The spelling of 116311890 in words is "one hundred sixteen million, three hundred eleven thousand, eight hundred ninety".