156396394 has 16 divisors (see below), whose sum is σ = 292481856. Its totient is φ = 60933600.

The previous prime is 156396377. The next prime is 156396419. The reversal of 156396394 is 493693651.

156396394 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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, 507627 + ... + 507934.

It is an arithmetic number, because the mean of its divisors is an integer number (18280116).

Almost surely, 2^156396394 is an apocalyptic number.

156396394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

156396394 is a deficient number, since it is larger than the sum of its proper divisors (136085462).

156396394 is a wasteful number, since it uses less digits than its factorization.

156396394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015581.

The product of its digits is 524880, while the sum is 46.

The square root of 156396394 is about 12505.8543890452. The cubic root of 156396394 is about 538.7768313681.

The spelling of 156396394 in words is "one hundred fifty-six million, three hundred ninety-six thousand, three hundred ninety-four".