402263453 has 4 divisors (see below), whose sum is σ = 402463740. Its totient is φ = 402063168.

The previous prime is 402263443. The next prime is 402263467. The reversal of 402263453 is 354362204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 325910809 + 76352644 = 18053^2 + 8738^2 .

It is a cyclic number.

It is not a de Polignac number, because 402263453 - 2¹⁸ = 402001309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402263413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97100 + ... + 101157.

It is an arithmetic number, because the mean of its divisors is an integer number (100615935).

Almost surely, 2^402263453 is an apocalyptic number.

It is an amenable number.

402263453 is a deficient number, since it is larger than the sum of its proper divisors (200287).

402263453 is a wasteful number, since it uses less digits than its factorization.

402263453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200286.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 402263453 is about 20056.5065003854. The cubic root of 402263453 is about 738.1934585595.

The spelling of 402263453 in words is "four hundred two million, two hundred sixty-three thousand, four hundred fifty-three".