116642406 has 64 divisors (see below), whose sum is σ = 262483200. Its totient is φ = 34338816.

The previous prime is 116642401. The next prime is 116642413. The reversal of 116642406 is 604246611.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116642401) 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, 269166 + ... + 269598.

It is an arithmetic number, because the mean of its divisors is an integer number (4101300).

Almost surely, 2^116642406 is an apocalyptic number.

116642406 is an abundant number, since it is smaller than the sum of its proper divisors (145840794).

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

116642406 is a wasteful number, since it uses less digits than its factorization.

116642406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 116642406 is about 10800.1113883145. Note that the first 3 decimals coincide. The cubic root of 116642406 is about 488.5985304747.

The spelling of 116642406 in words is "one hundred sixteen million, six hundred forty-two thousand, four hundred six".