40027387904 has 48 divisors (see below), whose sum is σ = 91468868400. Its totient is φ = 17154588672.

The previous prime is 40027387903. The next prime is 40027387919. The reversal of 40027387904 is 40978372004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40027387903) 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, 1381709 + ... + 1410380.

It is an arithmetic number, because the mean of its divisors is an integer number (1905601425).

Almost surely, 2^40027387904 is an apocalyptic number.

It is an amenable number.

40027387904 is an abundant number, since it is smaller than the sum of its proper divisors (51441480496).

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

40027387904 is an equidigital number, since it uses as much as digits as its factorization.

40027387904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792118 (or 2792098 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 40027387904 in words is "forty billion, twenty-seven million, three hundred eighty-seven thousand, nine hundred four".