398878097346 has 96 divisors (see below), whose sum is σ = 901316782080. Its totient is φ = 127389743712.

The previous prime is 398878097339. The next prime is 398878097399. The reversal of 398878097346 is 643790878893.

It is a super-3 number, since 3×398878097346³ (a number of 36 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12377971 + ... + 12410153.

It is an arithmetic number, because the mean of its divisors is an integer number (9388716480).

Almost surely, 2^398878097346 is an apocalyptic number.

398878097346 is an abundant number, since it is smaller than the sum of its proper divisors (502438684734).

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

398878097346 is a wasteful number, since it uses less digits than its factorization.

398878097346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32540 (or 32537 counting only the distinct ones).

The product of its (nonzero) digits is 438939648, while the sum is 72.

The spelling of 398878097346 in words is "three hundred ninety-eight billion, eight hundred seventy-eight million, ninety-seven thousand, three hundred forty-six".