11340639 has 12 divisors (see below), whose sum is σ = 16448016. Its totient is φ = 7529472.

The previous prime is 11340629. The next prime is 11340643. The reversal of 11340639 is 93604311.

It is not a de Polignac number, because 11340639 - 2⁸ = 11340383 is a prime.

It is a super-2 number, since 2×11340639² = 257220185856642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11340619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139 + ... + 4764.

It is an arithmetic number, because the mean of its divisors is an integer number (1370668).

Almost surely, 2^11340639 is an apocalyptic number.

11340639 is a deficient number, since it is larger than the sum of its proper divisors (5107377).

11340639 is a wasteful number, since it uses less digits than its factorization.

11340639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166 (or 5163 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 11340639 is about 3367.5865245009. The cubic root of 11340639 is about 224.6703914574.

The spelling of 11340639 in words is "eleven million, three hundred forty thousand, six hundred thirty-nine".