402002928 has 120 divisors (see below), whose sum is σ = 1164354048. Its totient is φ = 129378816.

The previous prime is 402002917. The next prime is 402002929. The reversal of 402002928 is 829200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402002929) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1049425 + ... + 1049807.

Almost surely, 2^402002928 is an apocalyptic number.

402002928 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402002928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582177024).

402002928 is an abundant number, since it is smaller than the sum of its proper divisors (762351120).

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

402002928 is a wasteful number, since it uses less digits than its factorization.

402002928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 402002928 is about 20050.0106733139. The cubic root of 402002928 is about 738.0340610450.

The spelling of 402002928 in words is "four hundred two million, two thousand, nine hundred twenty-eight".