406225257231 has 16 divisors (see below), whose sum is σ = 546073657344. Its totient is φ = 268600373184.

The previous prime is 406225257211. The next prime is 406225257233. The reversal of 406225257231 is 132752522604.

406225257231 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 406225257231 - 2⁵ = 406225257199 is a prime.

It is a super-2 number, since 2×406225257231² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 406225257231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406225257233) 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, 21490 + ... + 901616.

It is an arithmetic number, because the mean of its divisors is an integer number (34129603584).

Almost surely, 2^406225257231 is an apocalyptic number.

406225257231 is a deficient number, since it is larger than the sum of its proper divisors (139848400113).

406225257231 is a wasteful number, since it uses less digits than its factorization.

406225257231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881390.

The product of its (nonzero) digits is 201600, while the sum is 39.

Adding to 406225257231 its reverse (132752522604), we get a palindrome (538977779835).

The spelling of 406225257231 in words is "four hundred six billion, two hundred twenty-five million, two hundred fifty-seven thousand, two hundred thirty-one".