40250400020 has 12 divisors (see below), whose sum is σ = 84525840084. Its totient is φ = 16100160000.

The previous prime is 40250400019. The next prime is 40250400079. The reversal of 40250400020 is 2000405204.

40250400020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30441874576 + 9808525444 = 174476^2 + 99038^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006259981 + ... + 1006260020.

It is an arithmetic number, because the mean of its divisors is an integer number (7043820007).

Almost surely, 2^40250400020 is an apocalyptic number.

It is an amenable number.

40250400020 is an abundant number, since it is smaller than the sum of its proper divisors (44275440064).

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

40250400020 is a wasteful number, since it uses less digits than its factorization.

40250400020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012520010 (or 2012520008 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

Adding to 40250400020 its reverse (2000405204), we get a palindrome (42250805224).

The spelling of 40250400020 in words is "forty billion, two hundred fifty million, four hundred thousand, twenty".