156456406 has 16 divisors (see below), whose sum is σ = 249119280. Its totient is φ = 73440000.

The previous prime is 156456397. The next prime is 156456413. The reversal of 156456406 is 604654651.

It is a congruent number.

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, 8281 + ... + 19531.

It is an arithmetic number, because the mean of its divisors is an integer number (15569955).

Almost surely, 2^156456406 is an apocalyptic number.

156456406 is a deficient number, since it is larger than the sum of its proper divisors (92662874).

156456406 is a wasteful number, since it uses less digits than its factorization.

156456406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11679.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 156456406 is about 12508.2535151795. The cubic root of 156456406 is about 538.8457352170.

It can be divided in two parts, 1564 and 56406, that added together give a triangular number (57970 = T₃₄₀).

The spelling of 156456406 in words is "one hundred fifty-six million, four hundred fifty-six thousand, four hundred six".