13493949 has 16 divisors (see below), whose sum is σ = 20912640. Its totient is φ = 7579440.

The previous prime is 13493947. The next prime is 13493951. The reversal of 13493949 is 94939431.

It is an interprime number because it is at equal distance from previous prime (13493947) and next prime (13493951).

It is not a de Polignac number, because 13493949 - 2¹ = 13493947 is a prime.

It is a super-2 number, since 2×13493949² = 364173319229202, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13493949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13493941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4207 + ... + 6684.

It is an arithmetic number, because the mean of its divisors is an integer number (1307040).

Almost surely, 2^13493949 is an apocalyptic number.

It is an amenable number.

13493949 is a deficient number, since it is larger than the sum of its proper divisors (7418691).

13493949 is a wasteful number, since it uses less digits than its factorization.

13493949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10960.

The product of its digits is 104976, while the sum is 42.

The square root of 13493949 is about 3673.4110850815. The cubic root of 13493949 is about 238.0745770573.

The spelling of 13493949 in words is "thirteen million, four hundred ninety-three thousand, nine hundred forty-nine".