40204786990 has 24 divisors (see below), whose sum is σ = 76876009992. Its totient is φ = 15135918720.

The previous prime is 40204786987. The next prime is 40204787017. The reversal of 40204786990 is 9968740204.

40204786990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40204786990² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6952956 + ... + 6958735.

It is an arithmetic number, because the mean of its divisors is an integer number (3203167083).

Almost surely, 2^40204786990 is an apocalyptic number.

40204786990 is a deficient number, since it is larger than the sum of its proper divisors (36671223002).

40204786990 is a wasteful number, since it uses less digits than its factorization.

40204786990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13911732 (or 13911715 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 40204786990 in words is "forty billion, two hundred four million, seven hundred eighty-six thousand, nine hundred ninety".