40005632560 has 40 divisors (see below), whose sum is σ = 93021497136. Its totient is φ = 16000807680.

The previous prime is 40005632549. The next prime is 40005632561. The reversal of 40005632560 is 6523650004.

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

It is not an unprimeable number, because it can be changed into a prime (40005632561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1541290 + ... + 1567030.

Almost surely, 2^40005632560 is an apocalyptic number.

40005632560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40005632560 is an abundant number, since it is smaller than the sum of its proper divisors (53015864576).

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

40005632560 is a wasteful number, since it uses less digits than its factorization.

40005632560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45181 (or 45175 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 40005632560 in words is "forty billion, five million, six hundred thirty-two thousand, five hundred sixty".