1290724 has 12 divisors (see below), whose sum is σ = 2270464. Its totient is φ = 642024.

The previous prime is 1290719. The next prime is 1290791. The reversal of 1290724 is 4270921.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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, 169 + ... + 1615.

2^1290724 is an apocalyptic number.

It is an amenable number.

1290724 is a deficient number, since it is larger than the sum of its proper divisors (979740).

1290724 is a wasteful number, since it uses less digits than its factorization.

1290724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1290724 is about 1136.1003476806. The cubic root of 1290724 is about 108.8790848378.

The spelling of 1290724 in words is "one million, two hundred ninety thousand, seven hundred twenty-four".