402052452 has 24 divisors (see below), whose sum is σ = 938560896. Its totient is φ = 133954848.

The previous prime is 402052421. The next prime is 402052457. The reversal of 402052452 is 254250204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (402052457) 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, 24133 + ... + 37235.

It is an arithmetic number, because the mean of its divisors is an integer number (39106704).

Almost surely, 2^402052452 is an apocalyptic number.

It is an amenable number.

402052452 is an abundant number, since it is smaller than the sum of its proper divisors (536508444).

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

402052452 is a wasteful number, since it uses less digits than its factorization.

402052452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15667 (or 15665 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 402052452 is about 20051.2456470914. The cubic root of 402052452 is about 738.0643667099.

The spelling of 402052452 in words is "four hundred two million, fifty-two thousand, four hundred fifty-two".