156863040 has 112 divisors (see below), whose sum is σ = 507601728. Its totient is φ = 41027584.

The previous prime is 156863039. The next prime is 156863101. The reversal of 156863040 is 40368651.

It is a junction number, because it is equal to n+sod(n) for n = 156862992 and 156863010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49339 + ... + 52421.

Almost surely, 2^156863040 is an apocalyptic number.

156863040 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 156863040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253800864).

156863040 is an abundant number, since it is smaller than the sum of its proper divisors (350738688).

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

156863040 is a wasteful number, since it uses less digits than its factorization.

156863040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156 (or 3146 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 156863040 is about 12524.4975947141. The cubic root of 156863040 is about 539.3121557560.

The spelling of 156863040 in words is "one hundred fifty-six million, eight hundred sixty-three thousand, forty".