40404052000 has 96 divisors (see below), whose sum is σ = 106909259184. Its totient is φ = 14918400000.

The previous prime is 40404051979. The next prime is 40404052009. The reversal of 40404052000 is 25040404.

It can be written as a sum of positive squares in 8 ways, for example, as 3982619664 + 36421432336 = 63108^2 + 190844^2 .

It is not an unprimeable number, because it can be changed into a prime (40404052009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336501 + ... + 440500.

Almost surely, 2^40404052000 is an apocalyptic number.

40404052000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40404052000 is an abundant number, since it is smaller than the sum of its proper divisors (66505207184).

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

40404052000 is a wasteful number, since it uses less digits than its factorization.

40404052000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777039 (or 777021 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

Adding to 40404052000 its reverse (25040404), we get a palindrome (40429092404).

The spelling of 40404052000 in words is "forty billion, four hundred four million, fifty-two thousand".