1490004 has 18 divisors (see below), whose sum is σ = 3766490. Its totient is φ = 496656.

The previous prime is 1489997. The next prime is 1490011. The reversal of 1490004 is 4000941.

It is an interprime number because it is at equal distance from previous prime (1489997) and next prime (1490011).

It can be written as a sum of positive squares in only one way, i.e., 1368900 + 121104 = 1170^2 + 348^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1490004² = 4440223840032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20659 + ... + 20730.

2^1490004 is an apocalyptic number.

It is an amenable number.

1490004 is an abundant number, since it is smaller than the sum of its proper divisors (2276486).

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

1490004 is a wasteful number, since it uses less digits than its factorization.

1490004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41399 (or 41394 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1490004 is about 1220.6572000361. The cubic root of 1490004 is about 114.2165781256.

Adding to 1490004 its reverse (4000941), we get a palindrome (5490945).

The spelling of 1490004 in words is "one million, four hundred ninety thousand, four".