402403402319 has 4 divisors (see below), whose sum is σ = 402532422240. Its totient is φ = 402274382400.

The previous prime is 402403402259. The next prime is 402403402321. The reversal of 402403402319 is 913204304204.

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

It is a cyclic number.

It is not a de Polignac number, because 402403402319 - 2³⁶ = 333683925583 is a prime.

It is a super-2 number, since 2×402403402319² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402403402399) 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, 64505282 + ... + 64511519.

It is an arithmetic number, because the mean of its divisors is an integer number (100633105560).

Almost surely, 2^402403402319 is an apocalyptic number.

402403402319 is a deficient number, since it is larger than the sum of its proper divisors (129019921).

402403402319 is a wasteful number, since it uses less digits than its factorization.

402403402319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129019920.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 402403402319 in words is "four hundred two billion, four hundred three million, four hundred two thousand, three hundred nineteen".