1660464 has 60 divisors (see below), whose sum is σ = 5010096. Its totient is φ = 510336.

The previous prime is 1660457. The next prime is 1660469. The reversal of 1660464 is 4640661.

It is not an unprimeable number, because it can be changed into a prime (1660469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1429 + ... + 2315.

2^1660464 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 1660464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2505048).

1660464 is an abundant number, since it is smaller than the sum of its proper divisors (3349632).

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

1660464 is a wasteful number, since it uses less digits than its factorization.

1660464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1660464 is about 1288.5899270132. The cubic root of 1660464 is about 118.4158458217.

The spelling of 1660464 in words is "one million, six hundred sixty thousand, four hundred sixty-four".