402051263 has 2 divisors, whose sum is σ = 402051264. Its totient is φ = 402051262.

The previous prime is 402051259. The next prime is 402051271. The reversal of 402051263 is 362150204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402051263 - 2² = 402051259 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402011263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201025631 + 201025632.

It is an arithmetic number, because the mean of its divisors is an integer number (201025632).

Almost surely, 2^402051263 is an apocalyptic number.

402051263 is a deficient number, since it is larger than the sum of its proper divisors (1).

402051263 is an equidigital number, since it uses as much as digits as its factorization.

402051263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 402051263 is about 20051.2159980386. The cubic root of 402051263 is about 738.0636391436.

The spelling of 402051263 in words is "four hundred two million, fifty-one thousand, two hundred sixty-three".