40070400400 has 30 divisors (see below), whose sum is σ = 96269137922. Its totient is φ = 16028160000.

The previous prime is 40070400397. The next prime is 40070400401. The reversal of 40070400400 is 400407004.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8558470144 + 31511930256 = 92512^2 + 177516^2 .

It is not an unprimeable number, because it can be changed into a prime (40070400401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50087601 + ... + 50088400.

Almost surely, 2^40070400400 is an apocalyptic number.

40070400400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40070400400 is an abundant number, since it is smaller than the sum of its proper divisors (56198737522).

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

40070400400 is a wasteful number, since it uses less digits than its factorization.

40070400400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100176019 (or 100176008 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

Adding to 40070400400 its reverse (400407004), we get a palindrome (40470807404).

The spelling of 40070400400 in words is "forty billion, seventy million, four hundred thousand, four hundred".