156739340 has 12 divisors (see below), whose sum is σ = 329152656. Its totient is φ = 62695728.

The previous prime is 156739309. The next prime is 156739369. The reversal of 156739340 is 43937651.

It is a happy number.

156739340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 156739294 and 156739303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3918464 + ... + 3918503.

It is an arithmetic number, because the mean of its divisors is an integer number (27429388).

Almost surely, 2^156739340 is an apocalyptic number.

156739340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156739340 is an abundant number, since it is smaller than the sum of its proper divisors (172413316).

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

156739340 is a wasteful number, since it uses less digits than its factorization.

156739340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7836976 (or 7836974 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 156739340 is about 12519.5582989177. The cubic root of 156739340 is about 539.1703538001.

The spelling of 156739340 in words is "one hundred fifty-six million, seven hundred thirty-nine thousand, three hundred forty".