11057439 has 16 divisors (see below), whose sum is σ = 15372000. Its totient is φ = 7061376.

The previous prime is 11057437. The next prime is 11057447. The reversal of 11057439 is 93475011.

11057439 = 195² + 196² + ... + 343².

It is not a de Polignac number, because 11057439 - 2¹ = 11057437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11057437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12537 + ... + 13389.

It is an arithmetic number, because the mean of its divisors is an integer number (960750).

Almost surely, 2^11057439 is an apocalyptic number.

11057439 is a deficient number, since it is larger than the sum of its proper divisors (4314561).

11057439 is a wasteful number, since it uses less digits than its factorization.

11057439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 11057439 is about 3325.2727707663. The cubic root of 11057439 is about 222.7844378100.

The spelling of 11057439 in words is "eleven million, fifty-seven thousand, four hundred thirty-nine".