40702640724 has 24 divisors (see below), whose sum is σ = 105525365120. Its totient is φ = 13567546872.

The previous prime is 40702640723. The next prime is 40702640761. The reversal of 40702640724 is 42704620704.

It is a happy number.

40702640724 is a `hidden beast` number, since 4 + 0 + 7 + 0 + 2 + 640 + 7 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40702640723) 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 7 ways as a sum of consecutive naturals, for example, 188438044 + ... + 188438259.

Almost surely, 2^40702640724 is an apocalyptic number.

It is an amenable number.

40702640724 is an abundant number, since it is smaller than the sum of its proper divisors (64822724396).

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

40702640724 is a wasteful number, since it uses less digits than its factorization.

40702640724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376876316 (or 376876308 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The spelling of 40702640724 in words is "forty billion, seven hundred two million, six hundred forty thousand, seven hundred twenty-four".