40522489928 has 12 divisors (see below), whose sum is σ = 75980736195. Its totient is φ = 20260960280.

The previous prime is 40522489927. The next prime is 40522489981. The reversal of 40522489928 is 82998422504.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 20261244964 + 20261244964 = 142342^2 + 142342^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=142342.

It is a super-2 number, since 2×40522489928² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40522489928.

It is not an unprimeable number, because it can be changed into a prime (40522489927) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 533783 + ... + 604953.

Almost surely, 2^40522489928 is an apocalyptic number.

It is an amenable number.

40522489928 is a deficient number, since it is larger than the sum of its proper divisors (35458246267).

40522489928 is an frugal number, since it uses more digits than its factorization.

40522489928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142348 (or 71173 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 40522489928 in words is "forty billion, five hundred twenty-two million, four hundred eighty-nine thousand, nine hundred twenty-eight".