1664484306 has 16 divisors (see below), whose sum is σ = 3341347200. Its totient is φ = 552765008.

The previous prime is 1664484299. The next prime is 1664484307. The reversal of 1664484306 is 6034844661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1664484307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514026 + ... + 517253.

It is an arithmetic number, because the mean of its divisors is an integer number (208834200).

Almost surely, 2^1664484306 is an apocalyptic number.

1664484306 is an abundant number, since it is smaller than the sum of its proper divisors (1676862894).

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

1664484306 is a wasteful number, since it uses less digits than its factorization.

1664484306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031553.

The product of its (nonzero) digits is 331776, while the sum is 42.

The square root of 1664484306 is about 40798.0919406778. The cubic root of 1664484306 is about 1185.1133805239.

The spelling of 1664484306 in words is "one billion, six hundred sixty-four million, four hundred eighty-four thousand, three hundred six".