398819276 has 12 divisors (see below), whose sum is σ = 711102672. Its totient is φ = 195647088.

The previous prime is 398819273. The next prime is 398819327. The reversal of 398819276 is 672918893.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (398819273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940400 + ... + 940823.

It is an arithmetic number, because the mean of its divisors is an integer number (59258556).

Almost surely, 2^398819276 is an apocalyptic number.

It is an amenable number.

398819276 is a deficient number, since it is larger than the sum of its proper divisors (312283396).

398819276 is a wasteful number, since it uses less digits than its factorization.

398819276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881280 (or 1881278 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 53.

The square root of 398819276 is about 19970.4600848353. The cubic root of 398819276 is about 736.0806144962.

The spelling of 398819276 in words is "three hundred ninety-eight million, eight hundred nineteen thousand, two hundred seventy-six".