236940393604 has 12 divisors (see below), whose sum is σ = 439036611804. Its totient is φ = 111501361664.

The previous prime is 236940393601. The next prime is 236940393617. The reversal of 236940393604 is 406393049632.

It can be written as a sum of positive squares in 2 ways, for example, as 194306403204 + 42633990400 = 440802^2 + 206480^2 .

It is a super-2 number, since 2×236940393604² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (236940393601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1742208709 + ... + 1742208844.

It is an arithmetic number, because the mean of its divisors is an integer number (36586384317).

Almost surely, 2^236940393604 is an apocalyptic number.

It is an amenable number.

236940393604 is a deficient number, since it is larger than the sum of its proper divisors (202096218200).

236940393604 is a wasteful number, since it uses less digits than its factorization.

236940393604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3484417574 (or 3484417572 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 49.

The spelling of 236940393604 in words is "two hundred thirty-six billion, nine hundred forty million, three hundred ninety-three thousand, six hundred four".