156835840 has 112 divisors (see below), whose sum is σ = 430938432. Its totient is φ = 53673984.

The previous prime is 156835831. The next prime is 156835841. The reversal of 156835840 is 48538651.

156835840 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 156835793 and 156835802.

It is not an unprimeable number, because it can be changed into a prime (156835841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286447 + ... + 286993.

Almost surely, 2^156835840 is an apocalyptic number.

156835840 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 156835840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215469216).

156835840 is an abundant number, since it is smaller than the sum of its proper divisors (274102592).

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

156835840 is an frugal number, since it uses more digits than its factorization.

156835840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 561 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 156835840 is about 12523.4116757376. The cubic root of 156835840 is about 539.2809817700.

The spelling of 156835840 in words is "one hundred fifty-six million, eight hundred thirty-five thousand, eight hundred forty".