402044411 has 2 divisors, whose sum is σ = 402044412. Its totient is φ = 402044410.

The previous prime is 402044399. The next prime is 402044449. The reversal of 402044411 is 114440204.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402044411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (402044471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201022205 + 201022206.

It is an arithmetic number, because the mean of its divisors is an integer number (201022206).

Almost surely, 2^402044411 is an apocalyptic number.

402044411 is a deficient number, since it is larger than the sum of its proper divisors (1).

402044411 is an equidigital number, since it uses as much as digits as its factorization.

402044411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 402044411 is about 20051.0451348552. The cubic root of 402044411 is about 738.0594462780.

Adding to 402044411 its reverse (114440204), we get a palindrome (516484615).

The spelling of 402044411 in words is "four hundred two million, forty-four thousand, four hundred eleven".