1390594 has 4 divisors (see below), whose sum is σ = 2085894. Its totient is φ = 695296.

The previous prime is 1390573. The next prime is 1390601. The reversal of 1390594 is 4950931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1352569 + 38025 = 1163^2 + 195^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347647 + ... + 347650.

2^1390594 is an apocalyptic number.

1390594 is a deficient number, since it is larger than the sum of its proper divisors (695300).

1390594 is an equidigital number, since it uses as much as digits as its factorization.

1390594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695299.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1390594 is about 1179.2344974601. The cubic root of 1390594 is about 111.6177979776.

The spelling of 1390594 in words is "one million, three hundred ninety thousand, five hundred ninety-four".