156478040 has 32 divisors (see below), whose sum is σ = 359570880. Its totient is φ = 61258752.

The previous prime is 156478033. The next prime is 156478043. The reversal of 156478040 is 40874651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156478043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39737 + ... + 43496.

It is an arithmetic number, because the mean of its divisors is an integer number (11236590).

Almost surely, 2^156478040 is an apocalyptic number.

156478040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156478040 is an abundant number, since it is smaller than the sum of its proper divisors (203092840).

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

156478040 is a wasteful number, since it uses less digits than its factorization.

156478040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83291 (or 83287 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 156478040 is about 12509.1182742830. The cubic root of 156478040 is about 538.8705703594.

The spelling of 156478040 in words is "one hundred fifty-six million, four hundred seventy-eight thousand, forty".