136456440 has 32 divisors (see below), whose sum is σ = 409369680. Its totient is φ = 36388352.

The previous prime is 136456429. The next prime is 136456469. The reversal of 136456440 is 44654631.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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, 568449 + ... + 568688.

Almost surely, 2^136456440 is an apocalyptic number.

136456440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136456440 is an abundant number, since it is smaller than the sum of its proper divisors (272913240).

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

136456440 is a wasteful number, since it uses less digits than its factorization.

136456440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137151 (or 1137147 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 136456440 is about 11681.4571008929. The cubic root of 136456440 is about 514.8309873648.

The spelling of 136456440 in words is "one hundred thirty-six million, four hundred fifty-six thousand, four hundred forty".