40037885840 has 40 divisors (see below), whose sum is σ = 93097434240. Its totient is φ = 16013545856.

The previous prime is 40037885827. The next prime is 40037885893. The reversal of 40037885840 is 4858873004.

It is a tau number, because it is divible by the number of its divisors (40).

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, 1076027 + ... + 1112613.

It is an arithmetic number, because the mean of its divisors is an integer number (2327435856).

Almost surely, 2^40037885840 is an apocalyptic number.

40037885840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40037885840 is an abundant number, since it is smaller than the sum of its proper divisors (53059548400).

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

40037885840 is a wasteful number, since it uses less digits than its factorization.

40037885840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50279 (or 50273 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 47.

The spelling of 40037885840 in words is "forty billion, thirty-seven million, eight hundred eighty-five thousand, eight hundred forty".