40680136 has 16 divisors (see below), whose sum is σ = 87171840. Its totient is φ = 17434320.

The previous prime is 40680119. The next prime is 40680137. The reversal of 40680136 is 63108604.

40680136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (40680137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363160 + ... + 363271.

It is an arithmetic number, because the mean of its divisors is an integer number (5448240).

Almost surely, 2^40680136 is an apocalyptic number.

It is an amenable number.

40680136 is an abundant number, since it is smaller than the sum of its proper divisors (46491704).

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

40680136 is a wasteful number, since it uses less digits than its factorization.

40680136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726444 (or 726440 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 40680136 is about 6378.0981491351. The cubic root of 40680136 is about 343.9226660485.

The spelling of 40680136 in words is "forty million, six hundred eighty thousand, one hundred thirty-six".