402062431 has 2 divisors, whose sum is σ = 402062432. Its totient is φ = 402062430.

The previous prime is 402062429. The next prime is 402062443. The reversal of 402062431 is 134260204.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402062431 - 2¹ = 402062429 is a prime.

It is a super-2 number, since 2×402062431² = 323308396843259522, which contains 22 as substring.

Together with 402062429, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402065431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201031215 + 201031216.

It is an arithmetic number, because the mean of its divisors is an integer number (201031216).

Almost surely, 2^402062431 is an apocalyptic number.

402062431 is a deficient number, since it is larger than the sum of its proper divisors (1).

402062431 is an equidigital number, since it uses as much as digits as its factorization.

402062431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 402062431 is about 20051.4944829556. The cubic root of 402062431 is about 738.0704729474.

The spelling of 402062431 in words is "four hundred two million, sixty-two thousand, four hundred thirty-one".