842390288 has 20 divisors (see below), whose sum is σ = 1632819600. Its totient is φ = 421017504.

The previous prime is 842390279. The next prime is 842390299. The reversal of 842390288 is 882093248.

It is a super-3 number, since 3×842390288³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33431 + ... + 52937.

It is an arithmetic number, because the mean of its divisors is an integer number (81640980).

Almost surely, 2^842390288 is an apocalyptic number.

It is an amenable number.

842390288 is a deficient number, since it is larger than the sum of its proper divisors (790429312).

842390288 is a wasteful number, since it uses less digits than its factorization.

842390288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22214 (or 22208 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 842390288 is about 29023.9605843172. The cubic root of 842390288 is about 944.4329205063.

The spelling of 842390288 in words is "eight hundred forty-two million, three hundred ninety thousand, two hundred eighty-eight".