1390293 has 12 divisors (see below), whose sum is σ = 2021760. Its totient is φ = 920616.

The previous prime is 1390283. The next prime is 1390297. The reversal of 1390293 is 3920931.

1390293 is nontrivially palindromic in base 8.

It is a de Polignac number, because none of the positive numbers 2^k-1390293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1180 + ... + 2042.

It is an arithmetic number, because the mean of its divisors is an integer number (168480).

2^1390293 is an apocalyptic number.

It is an amenable number.

1390293 is a deficient number, since it is larger than the sum of its proper divisors (631467).

1390293 is a wasteful number, since it uses less digits than its factorization.

1390293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 1390293 is about 1179.1068653858. The cubic root of 1390293 is about 111.6097440137.

The spelling of 1390293 in words is "one million, three hundred ninety thousand, two hundred ninety-three".