398748982 has 8 divisors (see below), whose sum is σ = 603713736. Its totient is φ = 197511072.

The previous prime is 398748971. The next prime is 398748983. The reversal of 398748982 is 289847893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398748983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931443 + ... + 931870.

It is an arithmetic number, because the mean of its divisors is an integer number (75464217).

Almost surely, 2^398748982 is an apocalyptic number.

398748982 is a deficient number, since it is larger than the sum of its proper divisors (204964754).

398748982 is a wasteful number, since it uses less digits than its factorization.

398748982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863422.

The product of its digits is 6967296, while the sum is 58.

The square root of 398748982 is about 19968.7000578405. The cubic root of 398748982 is about 736.0373659255.

The spelling of 398748982 in words is "three hundred ninety-eight million, seven hundred forty-eight thousand, nine hundred eighty-two".