156064440 has 256 divisors, whose sum is σ = 564019200. Its totient is φ = 33808896.

The previous prime is 156064439. The next prime is 156064481. The reversal of 156064440 is 44460651.

156064440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×156064440² = 48712218865027200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 156064398 and 156064407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2329287 + ... + 2329353.

It is an arithmetic number, because the mean of its divisors is an integer number (2203200).

Almost surely, 2^156064440 is an apocalyptic number.

156064440 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 156064440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282009600).

156064440 is an abundant number, since it is smaller than the sum of its proper divisors (407954760).

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

156064440 is a wasteful number, since it uses less digits than its factorization.

156064440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 156064440 is about 12492.5753950096. The cubic root of 156064440 is about 538.3953737017.

The spelling of 156064440 in words is "one hundred fifty-six million, sixty-four thousand, four hundred forty".