1056394 has 4 divisors (see below), whose sum is σ = 1584594. Its totient is φ = 528196.

The previous prime is 1056379. The next prime is 1056401. The reversal of 1056394 is 4936501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4936501 = 109 ⋅45289.

It can be written as a sum of positive squares in only one way, i.e., 680625 + 375769 = 825^2 + 613^2 .

It is a super-2 number, since 2×1056394² = 2231936566472, which contains 22 as substring.

It is a d-powerful number, because it can be written as 1 + 0 + 5 + 6⁵ + 3³ + 9 + 4¹⁰ .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264097 + ... + 264100.

2^1056394 is an apocalyptic number.

1056394 is a deficient number, since it is larger than the sum of its proper divisors (528200).

1056394 is an equidigital number, since it uses as much as digits as its factorization.

1056394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528199.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1056394 is about 1027.8102937799. The cubic root of 1056394 is about 101.8455306384.

The spelling of 1056394 in words is "one million, fifty-six thousand, three hundred ninety-four".