1490690 has 8 divisors (see below), whose sum is σ = 2683260. Its totient is φ = 596272.

The previous prime is 1490677. The next prime is 1490701. The reversal of 1490690 is 960941.

It can be written as a sum of positive squares in 2 ways, for example, as 1471369 + 19321 = 1213^2 + 139^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1490690² = 4444313352200, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 74525 + ... + 74544.

2^1490690 is an apocalyptic number.

1490690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1490690 is a deficient number, since it is larger than the sum of its proper divisors (1192570).

1490690 is a wasteful number, since it uses less digits than its factorization.

1490690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149076.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 1490690 is about 1220.9381638724. The cubic root of 1490690 is about 114.2341039289.

The spelling of 1490690 in words is "one million, four hundred ninety thousand, six hundred ninety".