13440652 has 6 divisors (see below), whose sum is σ = 23521148. Its totient is φ = 6720324.

The previous prime is 13440617. The next prime is 13440653. The reversal of 13440652 is 25604431.

It is a super-2 number, since 2×13440652² = 361302252370208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13440653) by changing a digit.

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, 1680078 + ... + 1680085.

Almost surely, 2^13440652 is an apocalyptic number.

It is an amenable number.

13440652 is a deficient number, since it is larger than the sum of its proper divisors (10080496).

13440652 is a wasteful number, since it uses less digits than its factorization.

13440652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360167 (or 3360165 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 13440652 is about 3666.1494786765. The cubic root of 13440652 is about 237.7607227280.

The spelling of 13440652 in words is "thirteen million, four hundred forty thousand, six hundred fifty-two".