13440949 has 8 divisors (see below), whose sum is σ = 14353920. Its totient is φ = 12558000.

The previous prime is 13440943. The next prime is 13440971. The reversal of 13440949 is 94904431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13440949 - 2³ = 13440941 is a prime.

It is a super-2 number, since 2×13440949² = 361318220041202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6577 + ... + 8374.

It is an arithmetic number, because the mean of its divisors is an integer number (1794240).

Almost surely, 2^13440949 is an apocalyptic number.

It is an amenable number.

13440949 is a deficient number, since it is larger than the sum of its proper divisors (912971).

13440949 is a wasteful number, since it uses less digits than its factorization.

13440949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15011.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 13440949 is about 3666.1899841661. The cubic root of 13440949 is about 237.7624739926.

The spelling of 13440949 in words is "thirteen million, four hundred forty thousand, nine hundred forty-nine".