402889480 has 32 divisors (see below), whose sum is σ = 1036002240. Its totient is φ = 138133440.

The previous prime is 402889469. The next prime is 402889481. The reversal of 402889480 is 84988204.

It is not an unprimeable number, because it can be changed into a prime (402889481) 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, 719166 + ... + 719725.

It is an arithmetic number, because the mean of its divisors is an integer number (32375070).

Almost surely, 2^402889480 is an apocalyptic number.

402889480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402889480 is an abundant number, since it is smaller than the sum of its proper divisors (633112760).

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

402889480 is a wasteful number, since it uses less digits than its factorization.

402889480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438909 (or 1438905 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 402889480 is about 20072.1070144616. The cubic root of 402889480 is about 738.5762006893.

The spelling of 402889480 in words is "four hundred two million, eight hundred eighty-nine thousand, four hundred eighty".