40133377920 has 64 divisors (see below), whose sum is σ = 127925148240. Its totient is φ = 10702233600.

The previous prime is 40133377897. The next prime is 40133377937. The reversal of 40133377920 is 2977333104.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×40133377920² (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 7 ways as a sum of consecutive naturals, for example, 10449481 + ... + 10453320.

Almost surely, 2^40133377920 is an apocalyptic number.

40133377920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40133377920 is an abundant number, since it is smaller than the sum of its proper divisors (87791770320).

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

40133377920 is a wasteful number, since it uses less digits than its factorization.

40133377920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20902823 (or 20902811 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 39.

The spelling of 40133377920 in words is "forty billion, one hundred thirty-three million, three hundred seventy-seven thousand, nine hundred twenty".