40379683840 has 88 divisors (see below), whose sum is σ = 102562020072. Its totient is φ = 15201730560.

The previous prime is 40379683837. The next prime is 40379683873. The reversal of 40379683840 is 4838697304.

It can be written as a sum of positive squares in 4 ways, for example, as 20976308224 + 19403375616 = 144832^2 + 139296^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144921 + ... + 319000.

Almost surely, 2^40379683840 is an apocalyptic number.

40379683840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40379683840 is an abundant number, since it is smaller than the sum of its proper divisors (62182336232).

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

40379683840 is a wasteful number, since it uses less digits than its factorization.

40379683840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463963 (or 463945 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 40379683840 in words is "forty billion, three hundred seventy-nine million, six hundred eighty-three thousand, eight hundred forty".