402407303 has 2 divisors, whose sum is σ = 402407304. Its totient is φ = 402407302.

The previous prime is 402407267. The next prime is 402407309. The reversal of 402407303 is 303704204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402407303 - 2²⁸ = 133971847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402407309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201203651 + 201203652.

It is an arithmetic number, because the mean of its divisors is an integer number (201203652).

Almost surely, 2^402407303 is an apocalyptic number.

402407303 is a deficient number, since it is larger than the sum of its proper divisors (1).

402407303 is an equidigital number, since it uses as much as digits as its factorization.

402407303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 402407303 is about 20060.0922978933. The cubic root of 402407303 is about 738.2814410935.

The spelling of 402407303 in words is "four hundred two million, four hundred seven thousand, three hundred three".