156080440 has 64 divisors (see below), whose sum is σ = 378756000. Its totient is φ = 57692160.

The previous prime is 156080437. The next prime is 156080447. The reversal of 156080440 is 44080651.

It is a super-2 number, since 2×156080440² = 48722207501187200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 156080399 and 156080408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156080447) 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 15 ways as a sum of consecutive naturals, for example, 28656 + ... + 33664.

Almost surely, 2^156080440 is an apocalyptic number.

156080440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156080440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189378000).

156080440 is an abundant number, since it is smaller than the sum of its proper divisors (222675560).

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

156080440 is a wasteful number, since it uses less digits than its factorization.

156080440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080 (or 5076 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 156080440 is about 12493.2157589629. The cubic root of 156080440 is about 538.4137721522.

It can be divided in two parts, 156080 and 440, that added together give a triangular number (156520 = T₅₅₉).

The spelling of 156080440 in words is "one hundred fifty-six million, eighty thousand, four hundred forty".