1664862232 has 96 divisors (see below), whose sum is σ = 3644625600. Its totient is φ = 710424000.

The previous prime is 1664862229. The next prime is 1664862253. The reversal of 1664862232 is 2322684661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2409007 + ... + 2409697.

It is an arithmetic number, because the mean of its divisors is an integer number (37964850).

Almost surely, 2^1664862232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1664862232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1822312800).

1664862232 is an abundant number, since it is smaller than the sum of its proper divisors (1979763368).

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

1664862232 is a wasteful number, since it uses less digits than its factorization.

1664862232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 854 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 1664862232 is about 40802.7233404830. The cubic root of 1664862232 is about 1185.2030682156.

The spelling of 1664862232 in words is "one billion, six hundred sixty-four million, eight hundred sixty-two thousand, two hundred thirty-two".