1664304834 has 32 divisors (see below), whose sum is σ = 3394923840. Its totient is φ = 543737792.

The previous prime is 1664304779. The next prime is 1664304847. The reversal of 1664304834 is 4384034661.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1664304792 and 1664304801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398284 + ... + 402440.

It is an arithmetic number, because the mean of its divisors is an integer number (106091370).

Almost surely, 2^1664304834 is an apocalyptic number.

1664304834 is an abundant number, since it is smaller than the sum of its proper divisors (1730619006).

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

1664304834 is a wasteful number, since it uses less digits than its factorization.

1664304834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5474.

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 1664304834 is about 40795.8923667567. The cubic root of 1664304834 is about 1185.0707842850.

The spelling of 1664304834 in words is "one billion, six hundred sixty-four million, three hundred four thousand, eight hundred thirty-four".