398884043 has 4 divisors (see below), whose sum is σ = 419877960. Its totient is φ = 377890128.

The previous prime is 398884033. The next prime is 398884049. The reversal of 398884043 is 340488893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340488893 = 8053 ⋅42281.

It is a cyclic number.

It is not a de Polignac number, because 398884043 - 2¹² = 398879947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (398884049) 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, 10496930 + ... + 10496967.

It is an arithmetic number, because the mean of its divisors is an integer number (104969490).

Almost surely, 2^398884043 is an apocalyptic number.

398884043 is a deficient number, since it is larger than the sum of its proper divisors (20993917).

398884043 is a wasteful number, since it uses less digits than its factorization.

398884043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20993916.

The product of its (nonzero) digits is 663552, while the sum is 47.

The square root of 398884043 is about 19972.0815890583. The cubic root of 398884043 is about 736.1204580674.

The spelling of 398884043 in words is "three hundred ninety-eight million, eight hundred eighty-four thousand, forty-three".