400332243231 has 6 divisors (see below), whose sum is σ = 578257684680. Its totient is φ = 266888162148.

The previous prime is 400332243193. The next prime is 400332243247. The reversal of 400332243231 is 132342233004.

400332243231 is a `hidden beast` number, since 4 + 0 + 0 + 332 + 2 + 4 + 323 + 1 = 666.

It is not a de Polignac number, because 400332243231 - 2⁹ = 400332242719 is a prime.

It is a super-2 number, since 2×400332243231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400332243195 and 400332243204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400332243631) 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, 22240680171 + ... + 22240680188.

It is an arithmetic number, because the mean of its divisors is an integer number (96376280780).

Almost surely, 2^400332243231 is an apocalyptic number.

400332243231 is a deficient number, since it is larger than the sum of its proper divisors (177925441449).

400332243231 is a wasteful number, since it uses less digits than its factorization.

400332243231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44481360365 (or 44481360362 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 400332243231 its reverse (132342233004), we get a palindrome (532674476235).

The spelling of 400332243231 in words is "four hundred billion, three hundred thirty-two million, two hundred forty-three thousand, two hundred thirty-one".