398201280 has 56 divisors (see below), whose sum is σ = 1264292112. Its totient is φ = 106186752.

The previous prime is 398201269. The next prime is 398201303. The reversal of 398201280 is 82102893.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206437 + ... + 208356.

Almost surely, 2^398201280 is an apocalyptic number.

398201280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

398201280 is an abundant number, since it is smaller than the sum of its proper divisors (866090832).

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

398201280 is a wasteful number, since it uses less digits than its factorization.

398201280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414813 (or 414803 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 398201280 is about 19954.9813329905. The cubic root of 398201280 is about 735.7002165998.

The spelling of 398201280 in words is "three hundred ninety-eight million, two hundred one thousand, two hundred eighty".