116391400 has 48 divisors (see below), whose sum is σ = 271372140. Its totient is φ = 46425600.

The previous prime is 116391377. The next prime is 116391403. The reversal of 116391400 is 4193611.

It can be written as a sum of positive squares in 6 ways, for example, as 6937956 + 109453444 = 2634^2 + 10462^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (116391403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103642 + ... + 104758.

Almost surely, 2^116391400 is an apocalyptic number.

116391400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116391400 is an abundant number, since it is smaller than the sum of its proper divisors (154980740).

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

116391400 is a wasteful number, since it uses less digits than its factorization.

116391400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654 (or 1645 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 116391400 is about 10788.4846016482. The cubic root of 116391400 is about 488.2478025708.

The spelling of 116391400 in words is "one hundred sixteen million, three hundred ninety-one thousand, four hundred".