406572231 has 16 divisors (see below), whose sum is σ = 596219904. Its totient is φ = 244873824.

The previous prime is 406572197. The next prime is 406572251. The reversal of 406572231 is 132275604.

It is a de Polignac number, because none of the positive numbers 2^k-406572231 is a prime.

It is a super-2 number, since 2×406572231² = 330601958040634722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406572251) 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, 109071 + ... + 112736.

It is an arithmetic number, because the mean of its divisors is an integer number (37263744).

Almost surely, 2^406572231 is an apocalyptic number.

406572231 is a deficient number, since it is larger than the sum of its proper divisors (189647673).

406572231 is a wasteful number, since it uses less digits than its factorization.

406572231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221870.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 406572231 is about 20163.6363535946. The cubic root of 406572231 is about 740.8197823918.

The spelling of 406572231 in words is "four hundred six million, five hundred seventy-two thousand, two hundred thirty-one".