396118686 has 16 divisors (see below), whose sum is σ = 795527568. Its totient is φ = 131491200.

The previous prime is 396118643. The next prime is 396118687. The reversal of 396118686 is 686811693.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396118687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135525 + ... + 138416.

It is an arithmetic number, because the mean of its divisors is an integer number (49720473).

Almost surely, 2^396118686 is an apocalyptic number.

396118686 is an abundant number, since it is smaller than the sum of its proper divisors (399408882).

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

396118686 is a wasteful number, since it uses less digits than its factorization.

396118686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274187.

The product of its digits is 373248, while the sum is 48.

The square root of 396118686 is about 19902.7306166767. The cubic root of 396118686 is about 734.4154026143.

The spelling of 396118686 in words is "three hundred ninety-six million, one hundred eighteen thousand, six hundred eighty-six".