40520189072 has 40 divisors (see below), whose sum is σ = 86402907360. Its totient is φ = 18255265280.

The previous prime is 40520188987. The next prime is 40520189077. The reversal of 40520189072 is 27098102504.

It is not an unprimeable number, because it can be changed into a prime (40520189077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 998822 + ... + 1038597.

It is an arithmetic number, because the mean of its divisors is an integer number (2160072684).

Almost surely, 2^40520189072 is an apocalyptic number.

It is an amenable number.

40520189072 is an abundant number, since it is smaller than the sum of its proper divisors (45882718288).

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

40520189072 is a wasteful number, since it uses less digits than its factorization.

40520189072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037551 (or 2037545 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 40520189072 in words is "forty billion, five hundred twenty million, one hundred eighty-nine thousand, seventy-two".