402888 has 16 divisors (see below), whose sum is σ = 1007280. Its totient is φ = 134288.

The previous prime is 402881. The next prime is 402923. The reversal of 402888 is 888204.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (402881) 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, 8370 + ... + 8417.

It is an arithmetic number, because the mean of its divisors is an integer number (62955).

2⁴⁰²⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

402888 is an abundant number, since it is smaller than the sum of its proper divisors (604392).

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

402888 is a wasteful number, since it uses less digits than its factorization.

402888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16796 (or 16792 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 402888 is about 634.7345902029. The cubic root of 402888 is about 73.8575296311.

The spelling of 402888 in words is "four hundred two thousand, eight hundred eighty-eight".