402288260 has 24 divisors (see below), whose sum is σ = 921606336. Its totient is φ = 146286560.

The previous prime is 402288259. The next prime is 402288281. The reversal of 402288260 is 62882204.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914072 + ... + 914511.

It is an arithmetic number, because the mean of its divisors is an integer number (38400264).

Almost surely, 2^402288260 is an apocalyptic number.

It is an amenable number.

402288260 is an abundant number, since it is smaller than the sum of its proper divisors (519318076).

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

402288260 is a wasteful number, since it uses less digits than its factorization.

402288260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828603 (or 1828601 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 402288260 is about 20057.1249185919. The cubic root of 402288260 is about 738.2086326853.

The spelling of 402288260 in words is "four hundred two million, two hundred eighty-eight thousand, two hundred sixty".