11439394 has 4 divisors (see below), whose sum is σ = 17159094. Its totient is φ = 5719696.

The previous prime is 11439383. The next prime is 11439409. The reversal of 11439394 is 49393411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49393411 = 607 ⋅81373.

It can be written as a sum of positive squares in only one way, i.e., 10465225 + 974169 = 3235^2 + 987^2 .

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 as a sum of consecutive naturals, namely, 2859847 + ... + 2859850.

Almost surely, 2^11439394 is an apocalyptic number.

11439394 is a deficient number, since it is larger than the sum of its proper divisors (5719700).

11439394 is an equidigital number, since it uses as much as digits as its factorization.

11439394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5719699.

The product of its digits is 11664, while the sum is 34.

The square root of 11439394 is about 3382.2173200432. The cubic root of 11439394 is about 225.3206555624.

The spelling of 11439394 in words is "eleven million, four hundred thirty-nine thousand, three hundred ninety-four".