40054501640 has 32 divisors (see below), whose sum is σ = 90139069080. Its totient is φ = 16018877952.

The previous prime is 40054501573. The next prime is 40054501699. The reversal of 40054501640 is 4610545004.

It can be written as a sum of positive squares in 4 ways, for example, as 8670961924 + 31383539716 = 93118^2 + 177154^2 .

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, 137774 + ... + 314786.

Almost surely, 2^40054501640 is an apocalyptic number.

40054501640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40054501640 is an abundant number, since it is smaller than the sum of its proper divisors (50084567440).

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

40054501640 is a wasteful number, since it uses less digits than its factorization.

40054501640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182681 (or 182677 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 40054501640 in words is "forty billion, fifty-four million, five hundred one thousand, six hundred forty".