1490664 has 64 divisors (see below), whose sum is σ = 4492800. Its totient is φ = 402624.

The previous prime is 1490663. The next prime is 1490669. The reversal of 1490664 is 4660941.

1490664 = T₅₇ + T₅₈ + ... + T₂₀₈.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2959 + ... + 3425.

It is an arithmetic number, because the mean of its divisors is an integer number (70200).

2^1490664 is an apocalyptic number.

1490664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1490664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2246400).

1490664 is an abundant number, since it is smaller than the sum of its proper divisors (3002136).

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

1490664 is a wasteful number, since it uses less digits than its factorization.

1490664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1490664 is about 1220.9275162760. The cubic root of 1490664 is about 114.2334397837.

The spelling of 1490664 in words is "one million, four hundred ninety thousand, six hundred sixty-four".