40620420620 has 24 divisors (see below), whose sum is σ = 91864644144. Its totient is φ = 14998309056.

The previous prime is 40620420613. The next prime is 40620420667. The reversal of 40620420620 is 2602402604.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 40620420620.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78115934 + ... + 78116453.

It is an arithmetic number, because the mean of its divisors is an integer number (3827693506).

Almost surely, 2^40620420620 is an apocalyptic number.

It is an amenable number.

40620420620 is an abundant number, since it is smaller than the sum of its proper divisors (51244223524).

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

40620420620 is a wasteful number, since it uses less digits than its factorization.

40620420620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156232409 (or 156232407 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The spelling of 40620420620 in words is "forty billion, six hundred twenty million, four hundred twenty thousand, six hundred twenty".