842191264 has 24 divisors (see below), whose sum is σ = 1745331840. Its totient is φ = 398932416.

The previous prime is 842191223. The next prime is 842191267. The reversal of 842191264 is 462191248.

It is a super-2 number, since 2×842191264² = 1418572250315835392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (842191267) 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, 691984 + ... + 693199.

It is an arithmetic number, because the mean of its divisors is an integer number (72722160).

Almost surely, 2^842191264 is an apocalyptic number.

It is an amenable number.

842191264 is an abundant number, since it is smaller than the sum of its proper divisors (903140576).

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

842191264 is a wasteful number, since it uses less digits than its factorization.

842191264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385212 (or 1385204 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 842191264 is about 29020.5317663202. The cubic root of 842191264 is about 944.3585370821.

The spelling of 842191264 in words is "eight hundred forty-two million, one hundred ninety-one thousand, two hundred sixty-four".