402490002 has 16 divisors (see below), whose sum is σ = 805177152. Its totient is φ = 134130480.

The previous prime is 402489973. The next prime is 402490009. The reversal of 402490002 is 200094204.

It is not an unprimeable number, because it can be changed into a prime (402490009) 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, 41128 + ... + 49964.

It is an arithmetic number, because the mean of its divisors is an integer number (50323572).

Almost surely, 2^402490002 is an apocalyptic number.

402490002 is an abundant number, since it is smaller than the sum of its proper divisors (402687150).

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

402490002 is a wasteful number, since it uses less digits than its factorization.

402490002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16433.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 402490002 is about 20062.1534736429. The cubic root of 402490002 is about 738.3320125373.

The spelling of 402490002 in words is "four hundred two million, four hundred ninety thousand, two".