402889368 has 48 divisors (see below), whose sum is σ = 1171671480. Its totient is φ = 115110912.

The previous prime is 402889351. The next prime is 402889369. The reversal of 402889368 is 863988204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402889369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170121 + ... + 172472.

Almost surely, 2^402889368 is an apocalyptic number.

It is an amenable number.

402889368 is an abundant number, since it is smaller than the sum of its proper divisors (768782112).

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

402889368 is a wasteful number, since it uses less digits than its factorization.

402889368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342616 (or 342605 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 402889368 is about 20072.1042245202. The cubic root of 402889368 is about 738.5761322499.

The spelling of 402889368 in words is "four hundred two million, eight hundred eighty-nine thousand, three hundred sixty-eight".