404000400370 has 24 divisors (see below), whose sum is σ = 845927369964. Its totient is φ = 138514422816.

The previous prime is 404000400359. The next prime is 404000400371. The reversal of 404000400370 is 73004000404.

It can be written as a sum of positive squares in 2 ways, for example, as 379464624049 + 24535776321 = 616007^2 + 156639^2 .

It is a super-2 number, since 2×404000400370² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (404000400371) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 412244817 + ... + 412245796.

Almost surely, 2^404000400370 is an apocalyptic number.

404000400370 is an abundant number, since it is smaller than the sum of its proper divisors (441926969594).

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

404000400370 is a wasteful number, since it uses less digits than its factorization.

404000400370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824490634 (or 824490627 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

Adding to 404000400370 its reverse (73004000404), we get a palindrome (477004400774).

The spelling of 404000400370 in words is "four hundred four billion, four hundred thousand, three hundred seventy".