156464478 has 24 divisors (see below), whose sum is σ = 339280968. Its totient is φ = 52112592.

The previous prime is 156464467. The next prime is 156464491. The reversal of 156464478 is 874464651.

It is a super-2 number, since 2×156464478² = 48962265751624968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26025 + ... + 31467.

It is an arithmetic number, because the mean of its divisors is an integer number (14136707).

Almost surely, 2^156464478 is an apocalyptic number.

156464478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

156464478 is an abundant number, since it is smaller than the sum of its proper divisors (182816490).

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

156464478 is a wasteful number, since it uses less digits than its factorization.

156464478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7048 (or 7045 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 156464478 is about 12508.5761779669. The cubic root of 156464478 is about 538.8550018834.

The spelling of 156464478 in words is "one hundred fifty-six million, four hundred sixty-four thousand, four hundred seventy-eight".