398300520 has 32 divisors (see below), whose sum is σ = 1194901920. Its totient is φ = 106213440.

The previous prime is 398300519. The next prime is 398300521. The reversal of 398300520 is 25003893.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (398300519) and next prime (398300521).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (398300521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1659466 + ... + 1659705.

It is an arithmetic number, because the mean of its divisors is an integer number (37340685).

Almost surely, 2^398300520 is an apocalyptic number.

398300520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

398300520 is an abundant number, since it is smaller than the sum of its proper divisors (796601400).

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

398300520 is a wasteful number, since it uses less digits than its factorization.

398300520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319185 (or 3319181 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 398300520 is about 19957.4677752464. The cubic root of 398300520 is about 735.7613287632.

The spelling of 398300520 in words is "three hundred ninety-eight million, three hundred thousand, five hundred twenty".