156034840 has 128 divisors (see below), whose sum is σ = 421848000. Its totient is φ = 51314688.

The previous prime is 156034817. The next prime is 156034841. The reversal of 156034840 is 48430651.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156034841) 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 31 ways as a sum of consecutive naturals, for example, 167496 + ... + 168424.

Almost surely, 2^156034840 is an apocalyptic number.

156034840 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 156034840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210924000).

156034840 is an abundant number, since it is smaller than the sum of its proper divisors (265813160).

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

156034840 is a wasteful number, since it uses less digits than its factorization.

156034840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989 (or 985 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 156034840 is about 12491.3906351535. The cubic root of 156034840 is about 538.3613332530.

The spelling of 156034840 in words is "one hundred fifty-six million, thirty-four thousand, eight hundred forty".