1642323264 has 28 divisors (see below), whose sum is σ = 4345314144. Its totient is φ = 547441024.

The previous prime is 1642323259. The next prime is 1642323281. The reversal of 1642323264 is 4623232461.

It is a super-2 number, since 2×1642323264² = 5394451406951227392, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 4276692 + ... + 4277075.

Almost surely, 2^1642323264 is an apocalyptic number.

It is an amenable number.

1642323264 is an abundant number, since it is smaller than the sum of its proper divisors (2702990880).

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

1642323264 is an equidigital number, since it uses as much as digits as its factorization.

1642323264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8553782 (or 8553772 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

The square root of 1642323264 is about 40525.5877687172. The cubic root of 1642323264 is about 1179.8303078783.

The spelling of 1642323264 in words is "one billion, six hundred forty-two million, three hundred twenty-three thousand, two hundred sixty-four".