406033631 has 2 divisors, whose sum is σ = 406033632. Its totient is φ = 406033630.

The previous prime is 406033603. The next prime is 406033633. The reversal of 406033631 is 136330604.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406033631 is a prime.

It is a super-2 number, since 2×406033631² = 329726619006088322, which contains 22 as substring.

Together with 406033633, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 406033631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406033633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203016815 + 203016816.

It is an arithmetic number, because the mean of its divisors is an integer number (203016816).

Almost surely, 2^406033631 is an apocalyptic number.

406033631 is a deficient number, since it is larger than the sum of its proper divisors (1).

406033631 is an equidigital number, since it uses as much as digits as its factorization.

406033631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 406033631 is about 20150.2762015810. The cubic root of 406033631 is about 740.4925081494.

The spelling of 406033631 in words is "four hundred six million, thirty-three thousand, six hundred thirty-one".