1456664 has 16 divisors (see below), whose sum is σ = 2979720. Its totient is φ = 662080.

The previous prime is 1456657. The next prime is 1456667. The reversal of 1456664 is 4666541.

It is a self number, because there is not a number n which added to its sum of digits gives 1456664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1456667) 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, 8189 + ... + 8364.

2^1456664 is an apocalyptic number.

It is an amenable number.

1456664 is an abundant number, since it is smaller than the sum of its proper divisors (1523056).

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

1456664 is a wasteful number, since it uses less digits than its factorization.

1456664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16570 (or 16566 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 1456664 is about 1206.9233612786. The cubic root of 1456664 is about 113.3582490395.

The spelling of 1456664 in words is "one million, four hundred fifty-six thousand, six hundred sixty-four".