402098880 has 112 divisors (see below), whose sum is σ = 1332244224. Its totient is φ = 102558720.

The previous prime is 402098821. The next prime is 402098897. The reversal of 402098880 is 88890204.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12975 + ... + 31185.

Almost surely, 2^402098880 is an apocalyptic number.

402098880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402098880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666122112).

402098880 is an abundant number, since it is smaller than the sum of its proper divisors (930145344).

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

402098880 is a wasteful number, since it uses less digits than its factorization.

402098880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18254 (or 18244 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 402098880 is about 20052.4033472300. The cubic root of 402098880 is about 738.0927755516.

The spelling of 402098880 in words is "four hundred two million, ninety-eight thousand, eight hundred eighty".