13049748 has 30 divisors (see below), whose sum is σ = 34115466. Its totient is φ = 4349808.

The previous prime is 13049723. The next prime is 13049749. The reversal of 13049748 is 84794031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12830724 + 219024 = 3582^2 + 468^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13049749) 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 9 ways as a sum of consecutive naturals, for example, 19815 + ... + 20462.

Almost surely, 2^13049748 is an apocalyptic number.

13049748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13049748 is an abundant number, since it is smaller than the sum of its proper divisors (21065718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13049748 is a wasteful number, since it uses less digits than its factorization.

13049748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40293 (or 40282 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 13049748 is about 3612.4434943678. The cubic root of 13049748 is about 235.4330208320.

The spelling of 13049748 in words is "thirteen million, forty-nine thousand, seven hundred forty-eight".