40364023820 has 24 divisors (see below), whose sum is σ = 85785711984. Its totient is φ = 15951083456.

The previous prime is 40364023783. The next prime is 40364023859. The reversal of 40364023820 is 2832046304.

It is an unprimeable number.

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, 12156179 + ... + 12159498.

It is an arithmetic number, because the mean of its divisors is an integer number (3574404666).

Almost surely, 2^40364023820 is an apocalyptic number.

It is an amenable number.

40364023820 is an abundant number, since it is smaller than the sum of its proper divisors (45421688164).

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

40364023820 is a wasteful number, since it uses less digits than its factorization.

40364023820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24315769 (or 24315767 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 40364023820 in words is "forty billion, three hundred sixty-four million, twenty-three thousand, eight hundred twenty".