398538546 has 32 divisors (see below), whose sum is σ = 911537280. Its totient is φ = 113794176.

The previous prime is 398538541. The next prime is 398538563. The reversal of 398538546 is 645835893.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (398538541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122590 + ... + 125798.

It is an arithmetic number, because the mean of its divisors is an integer number (28485540).

Almost surely, 2^398538546 is an apocalyptic number.

398538546 is an abundant number, since it is smaller than the sum of its proper divisors (512998734).

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

398538546 is a wasteful number, since it uses less digits than its factorization.

398538546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6178.

The product of its digits is 3110400, while the sum is 51.

The square root of 398538546 is about 19963.4302162730. The cubic root of 398538546 is about 735.9078642246.

The spelling of 398538546 in words is "three hundred ninety-eight million, five hundred thirty-eight thousand, five hundred forty-six".