156968404 has 48 divisors (see below), whose sum is σ = 291791808. Its totient is φ = 73801728.

The previous prime is 156968363. The next prime is 156968411. The reversal of 156968404 is 404869651.

156968404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610644 + ... + 610900.

It is an arithmetic number, because the mean of its divisors is an integer number (6078996).

Almost surely, 2^156968404 is an apocalyptic number.

It is an amenable number.

156968404 is a deficient number, since it is larger than the sum of its proper divisors (134823404).

156968404 is a wasteful number, since it uses less digits than its factorization.

156968404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 156968404 is about 12528.7032050408. The cubic root of 156968404 is about 539.4328796858.

The spelling of 156968404 in words is "one hundred fifty-six million, nine hundred sixty-eight thousand, four hundred four".