1490889 has 4 divisors (see below), whose sum is σ = 1987856. Its totient is φ = 993924.

The previous prime is 1490869. The next prime is 1490893. The reversal of 1490889 is 9880941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1490889 - 2⁸ = 1490633 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1490869) 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, 248479 + ... + 248484.

It is an arithmetic number, because the mean of its divisors is an integer number (496964).

2^1490889 is an apocalyptic number.

It is an amenable number.

1490889 is a deficient number, since it is larger than the sum of its proper divisors (496967).

1490889 is an equidigital number, since it uses as much as digits as its factorization.

1490889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496966.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 1490889 is about 1221.0196558614. The cubic root of 1490889 is about 114.2391869386.

The spelling of 1490889 in words is "one million, four hundred ninety thousand, eight hundred eighty-nine".