408249020898 has 24 divisors (see below), whose sum is σ = 887902823808. Its totient is φ = 135565579512.

The previous prime is 408249020863. The next prime is 408249020909. The reversal of 408249020898 is 898020942804.

408249020898 is a `hidden beast` number, since 40 + 8 + 2 + 490 + 20 + 8 + 98 = 666.

408249020898 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43114090 + ... + 43123557.

It is an arithmetic number, because the mean of its divisors is an integer number (36995950992).

Almost surely, 2^408249020898 is an apocalyptic number.

408249020898 is an abundant number, since it is smaller than the sum of its proper divisors (479653802910).

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

408249020898 is a wasteful number, since it uses less digits than its factorization.

408249020898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86237918 (or 86237915 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 408249020898 in words is "four hundred eight billion, two hundred forty-nine million, twenty thousand, eight hundred ninety-eight".