842398252 has 6 divisors (see below), whose sum is σ = 1474196948. Its totient is φ = 421199124.

The previous prime is 842398223. The next prime is 842398289. The reversal of 842398252 is 252893248.

It is a super-3 number, since 3×842398252³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 842398199 and 842398208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105299778 + ... + 105299785.

Almost surely, 2^842398252 is an apocalyptic number.

It is an amenable number.

842398252 is a deficient number, since it is larger than the sum of its proper divisors (631798696).

842398252 is a wasteful number, since it uses less digits than its factorization.

842398252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210599567 (or 210599565 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 842398252 is about 29024.0977809819. The cubic root of 842398252 is about 944.4358967357.

The spelling of 842398252 in words is "eight hundred forty-two million, three hundred ninety-eight thousand, two hundred fifty-two".