136616440 has 32 divisors (see below), whose sum is σ = 309818880. Its totient is φ = 54214272.

The previous prime is 136616413. The next prime is 136616489. The reversal of 136616440 is 44616631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8367 + ... + 18526.

It is an arithmetic number, because the mean of its divisors is an integer number (9681840).

Almost surely, 2^136616440 is an apocalyptic number.

136616440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136616440 is an abundant number, since it is smaller than the sum of its proper divisors (173202440).

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

136616440 is a wasteful number, since it uses less digits than its factorization.

136616440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27031 (or 27027 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 136616440 is about 11688.3035552641. The cubic root of 136616440 is about 515.0321279482.

The spelling of 136616440 in words is "one hundred thirty-six million, six hundred sixteen thousand, four hundred forty".