136801440 has 96 divisors (see below), whose sum is σ = 478820160. Its totient is φ = 36479232.

The previous prime is 136801393. The next prime is 136801477. The reversal of 136801440 is 44108631.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11514 + ... + 20153.

It is an arithmetic number, because the mean of its divisors is an integer number (4987710).

Almost surely, 2^136801440 is an apocalyptic number.

136801440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136801440 is an abundant number, since it is smaller than the sum of its proper divisors (342018720).

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

136801440 is a wasteful number, since it uses less digits than its factorization.

136801440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31691 (or 31677 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 136801440 is about 11696.2147723099. The cubic root of 136801440 is about 515.2645010740.

The spelling of 136801440 in words is "one hundred thirty-six million, eight hundred one thousand, four hundred forty".