400423413213 has 12 divisors (see below), whose sum is σ = 578394859068. Its totient is φ = 266946410880.

The previous prime is 400423413197. The next prime is 400423413227. The reversal of 400423413213 is 312314324004.

400423413213 is a `hidden beast` number, since 400 + 4 + 2 + 3 + 41 + 3 + 213 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 266732997444 + 133690415769 = 516462^2 + 365637^2 .

It is not a de Polignac number, because 400423413213 - 2⁴ = 400423413197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400423413263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1774533 + ... + 1987413.

It is an arithmetic number, because the mean of its divisors is an integer number (48199571589).

Almost surely, 2^400423413213 is an apocalyptic number.

It is an amenable number.

400423413213 is a deficient number, since it is larger than the sum of its proper divisors (177971445855).

400423413213 is a wasteful number, since it uses less digits than its factorization.

400423413213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421884 (or 421881 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 400423413213 its reverse (312314324004), we get a palindrome (712737737217).

The spelling of 400423413213 in words is "four hundred billion, four hundred twenty-three million, four hundred thirteen thousand, two hundred thirteen".