402319452 has 24 divisors (see below), whose sum is σ = 988153600. Its totient is φ = 127048176.

The previous prime is 402319451. The next prime is 402319459. The reversal of 402319452 is 254913204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402319451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 882052 + ... + 882507.

Almost surely, 2^402319452 is an apocalyptic number.

It is an amenable number.

402319452 is an abundant number, since it is smaller than the sum of its proper divisors (585834148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402319452 is a wasteful number, since it uses less digits than its factorization.

402319452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764585 (or 1764583 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 402319452 is about 20057.9024825628. The cubic root of 402319452 is about 738.2277115490.

The spelling of 402319452 in words is "four hundred two million, three hundred nineteen thousand, four hundred fifty-two".