398459580 has 24 divisors (see below), whose sum is σ = 1115686992. Its totient is φ = 106255872.

The previous prime is 398459539. The next prime is 398459587. The reversal of 398459580 is 85954893.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398459587) 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, 3320437 + ... + 3320556.

It is an arithmetic number, because the mean of its divisors is an integer number (46486958).

Almost surely, 2^398459580 is an apocalyptic number.

398459580 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

398459580 is an abundant number, since it is smaller than the sum of its proper divisors (717227412).

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

398459580 is a wasteful number, since it uses less digits than its factorization.

398459580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6641005 (or 6641003 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The square root of 398459580 is about 19961.4523519708. The cubic root of 398459580 is about 735.8592570159.

The spelling of 398459580 in words is "three hundred ninety-eight million, four hundred fifty-nine thousand, five hundred eighty".