136904880 has 160 divisors (see below), whose sum is σ = 510681600. Its totient is φ = 29638656.

The previous prime is 136904851. The next prime is 136904891. The reversal of 136904880 is 88409631.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 29776 + ... + 34064.

It is an arithmetic number, because the mean of its divisors is an integer number (3191760).

Almost surely, 2^136904880 is an apocalyptic number.

136904880 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 136904880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255340800).

136904880 is an abundant number, since it is smaller than the sum of its proper divisors (373776720).

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

136904880 is a wasteful number, since it uses less digits than its factorization.

136904880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331 (or 4325 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 136904880 is about 11700.6358801563. The cubic root of 136904880 is about 515.3943377481.

The spelling of 136904880 in words is "one hundred thirty-six million, nine hundred four thousand, eight hundred eighty".