402669608 has 48 divisors (see below), whose sum is σ = 832537440. Its totient is φ = 182446880.

The previous prime is 402669559. The next prime is 402669643. The reversal of 402669608 is 806966204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 486491 + ... + 487317.

It is an arithmetic number, because the mean of its divisors is an integer number (17344530).

Almost surely, 2^402669608 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 402669608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416268720).

402669608 is an abundant number, since it is smaller than the sum of its proper divisors (429867832).

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

402669608 is a wasteful number, since it uses less digits than its factorization.

402669608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 402669608 is about 20066.6292136971. The cubic root of 402669608 is about 738.4418199351.

The spelling of 402669608 in words is "four hundred two million, six hundred sixty-nine thousand, six hundred eight".