402400802 has 8 divisors (see below), whose sum is σ = 604527516. Its totient is φ = 200891632.

The previous prime is 402400787. The next prime is 402400853. The reversal of 402400802 is 208004204.

It can be written as a sum of positive squares in 2 ways, for example, as 299601481 + 102799321 = 17309^2 + 10139^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152753 + ... + 155364.

Almost surely, 2^402400802 is an apocalyptic number.

402400802 is a deficient number, since it is larger than the sum of its proper divisors (202126714).

402400802 is a wasteful number, since it uses less digits than its factorization.

402400802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308772.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 402400802 is about 20059.9302591011. The cubic root of 402400802 is about 738.2774653592.

The spelling of 402400802 in words is "four hundred two million, four hundred thousand, eight hundred two".