156806490 has 16 divisors (see below), whose sum is σ = 376335648. Its totient is φ = 41815056.

The previous prime is 156806473. The next prime is 156806491. The reversal of 156806490 is 94608651.

156806490 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 2×156806490² = 49176550612240200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (156806491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2613412 + ... + 2613471.

It is an arithmetic number, because the mean of its divisors is an integer number (23520978).

Almost surely, 2^156806490 is an apocalyptic number.

156806490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

156806490 is an abundant number, since it is smaller than the sum of its proper divisors (219529158).

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

156806490 is a wasteful number, since it uses less digits than its factorization.

156806490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5226893.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 156806490 is about 12522.2398156240. The cubic root of 156806490 is about 539.2473396207.

The spelling of 156806490 in words is "one hundred fifty-six million, eight hundred six thousand, four hundred ninety".