40520004528 has 40 divisors (see below), whose sum is σ = 104684681200. Its totient is φ = 13505635584.

The previous prime is 40520004493. The next prime is 40520004587. The reversal of 40520004528 is 82540002504.

It is a junction number, because it is equal to n+sod(n) for n = 40520004495 and 40520004504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851838 + ... + 898146.

It is an arithmetic number, because the mean of its divisors is an integer number (2617117030).

Almost surely, 2^40520004528 is an apocalyptic number.

40520004528 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40520004528 is an abundant number, since it is smaller than the sum of its proper divisors (64164676672).

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

40520004528 is a wasteful number, since it uses less digits than its factorization.

40520004528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64549 (or 64543 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The spelling of 40520004528 in words is "forty billion, five hundred twenty million, four thousand, five hundred twenty-eight".