116631240 has 128 divisors (see below), whose sum is σ = 384912000. Its totient is φ = 28037120.

The previous prime is 116631233. The next prime is 116631241. The reversal of 116631240 is 42136611.

It is a super-2 number, since 2×116631240² = 27205692287875200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 116631240.

It is not an unprimeable number, because it can be changed into a prime (116631241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196384 + ... + 196976.

It is an arithmetic number, because the mean of its divisors is an integer number (3007125).

Almost surely, 2^116631240 is an apocalyptic number.

116631240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 116631240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192456000).

116631240 is an abundant number, since it is smaller than the sum of its proper divisors (268280760).

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

116631240 is a wasteful number, since it uses less digits than its factorization.

116631240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 763 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 116631240 is about 10799.5944368296. The cubic root of 116631240 is about 488.5829390459.

Adding to 116631240 its reverse (42136611), we get a palindrome (158767851).

The spelling of 116631240 in words is "one hundred sixteen million, six hundred thirty-one thousand, two hundred forty".