116691240 has 32 divisors (see below), whose sum is σ = 350074080. Its totient is φ = 31117632.

The previous prime is 116691227. The next prime is 116691251. The reversal of 116691240 is 42196611.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 116691198 and 116691207.

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, 486094 + ... + 486333.

It is an arithmetic number, because the mean of its divisors is an integer number (10939815).

Almost surely, 2^116691240 is an apocalyptic number.

116691240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116691240 is an abundant number, since it is smaller than the sum of its proper divisors (233382840).

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

116691240 is a wasteful number, since it uses less digits than its factorization.

116691240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972441 (or 972437 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 116691240 is about 10802.3719617499. The cubic root of 116691240 is about 488.6667071994. Note that the first 3 decimals are identical.

The spelling of 116691240 in words is "one hundred sixteen million, six hundred ninety-one thousand, two hundred forty".