402489606 has 8 divisors (see below), whose sum is σ = 804979224. Its totient is φ = 134163200.

The previous prime is 402489601. The next prime is 402489613. The reversal of 402489606 is 606984204.

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

402489606 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402489601) 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, 33540795 + ... + 33540806.

It is an arithmetic number, because the mean of its divisors is an integer number (100622403).

Almost surely, 2^402489606 is an apocalyptic number.

402489606 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

402489606 is a wasteful number, since it uses less digits than its factorization.

402489606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67081606.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 402489606 is about 20062.1436043111. The cubic root of 402489606 is about 738.3317703950.

The spelling of 402489606 in words is "four hundred two million, four hundred eighty-nine thousand, six hundred six".