1481664 has 28 divisors (see below), whose sum is σ = 3920744. Its totient is φ = 493824.

The previous prime is 1481663. The next prime is 1481671. The reversal of 1481664 is 4661841.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481663) 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, 3667 + ... + 4050.

2^1481664 is an apocalyptic number.

It is an amenable number.

1481664 is an abundant number, since it is smaller than the sum of its proper divisors (2439080).

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

1481664 is an equidigital number, since it uses as much as digits as its factorization.

1481664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7732 (or 7722 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 1481664 is about 1217.2362137235. The cubic root of 1481664 is about 114.0030777870.

It can be divided in two parts, 1481 and 664, that added together give a triangular number (2145 = T₆₅).

The spelling of 1481664 in words is "one million, four hundred eighty-one thousand, six hundred sixty-four".