402350984 has 64 divisors (see below), whose sum is σ = 906992640. Its totient is φ = 163687680.

The previous prime is 402350947. The next prime is 402350989. The reversal of 402350984 is 489053204.

It is not an unprimeable number, because it can be changed into a prime (402350989) 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 15 ways as a sum of consecutive naturals, for example, 89822 + ... + 94194.

It is an arithmetic number, because the mean of its divisors is an integer number (14171760).

Almost surely, 2^402350984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402350984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453496320).

402350984 is an abundant number, since it is smaller than the sum of its proper divisors (504641656).

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

402350984 is a wasteful number, since it uses less digits than its factorization.

402350984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470 (or 4466 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 402350984 is about 20058.6884915241. The cubic root of 402350984 is about 738.2469973744.

The spelling of 402350984 in words is "four hundred two million, three hundred fifty thousand, nine hundred eighty-four".