1390568 has 16 divisors (see below), whose sum is σ = 2634660. Its totient is φ = 688000.

The previous prime is 1390547. The next prime is 1390573. The reversal of 1390568 is 8650931.

It can be written as a sum of positive squares in 2 ways, for example, as 1162084 + 228484 = 1078^2 + 478^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53 + ... + 1668.

2^1390568 is an apocalyptic number.

It is an amenable number.

1390568 is a deficient number, since it is larger than the sum of its proper divisors (1244092).

1390568 is a wasteful number, since it uses less digits than its factorization.

1390568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1390568 is about 1179.2234733078. The cubic root of 1390568 is about 111.6171023322.

The spelling of 1390568 in words is "one million, three hundred ninety thousand, five hundred sixty-eight".