998243952 has 40 divisors (see below), whose sum is σ = 2581449360. Its totient is φ = 332405760.

The previous prime is 998243891. The next prime is 998243971. The reversal of 998243952 is 259342899.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 998243895 and 998243904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38824 + ... + 59192.

It is an arithmetic number, because the mean of its divisors is an integer number (64536234).

Almost surely, 2^998243952 is an apocalyptic number.

It is an amenable number.

998243952 is an abundant number, since it is smaller than the sum of its proper divisors (1583205408).

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

998243952 is a wasteful number, since it uses less digits than its factorization.

998243952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21401 (or 21395 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 51.

The square root of 998243952 is about 31594.9988447539. The cubic root of 998243952 is about 999.4143076982.

The spelling of 998243952 in words is "nine hundred ninety-eight million, two hundred forty-three thousand, nine hundred fifty-two".