1490281 has 16 divisors (see below), whose sum is σ = 1713600. Its totient is φ = 1286208.

The previous prime is 1490273. The next prime is 1490287. The reversal of 1490281 is 1820941.

It is a happy number.

It is not a de Polignac number, because 1490281 - 2³ = 1490273 is a prime.

It is a super-2 number, since 2×1490281² = 4441874917922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1490287) 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, 22210 + ... + 22276.

It is an arithmetic number, because the mean of its divisors is an integer number (107100).

2^1490281 is an apocalyptic number.

It is an amenable number.

1490281 is a deficient number, since it is larger than the sum of its proper divisors (223319).

1490281 is a wasteful number, since it uses less digits than its factorization.

1490281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1490281 is about 1220.7706582319. The cubic root of 1490281 is about 114.2236555186.

It can be divided in two parts, 1490 and 281, that added together give a palindrome (1771).

The spelling of 1490281 in words is "one million, four hundred ninety thousand, two hundred eighty-one".