1490985 has 24 divisors (see below), whose sum is σ = 2737800. Its totient is φ = 748032.

The previous prime is 1490969. The next prime is 1490999. The reversal of 1490985 is 5890941.

It can be written as a sum of positive squares in 4 ways, for example, as 522729 + 968256 = 723^2 + 984^2 .

It is not a de Polignac number, because 1490985 - 2⁴ = 1490969 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210 + ... + 1739.

It is an arithmetic number, because the mean of its divisors is an integer number (114075).

2^1490985 is an apocalyptic number.

1490985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1490985 is a deficient number, since it is larger than the sum of its proper divisors (1246815).

1490985 is a wasteful number, since it uses less digits than its factorization.

1490985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977 (or 1974 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1490985 is about 1221.0589666351. The cubic root of 1490985 is about 114.2416388821.

The spelling of 1490985 in words is "one million, four hundred ninety thousand, nine hundred eighty-five".