13749792 has 144 divisors (see below), whose sum is σ = 43666560. Its totient is φ = 3773952.

The previous prime is 13749781. The next prime is 13749793. The reversal of 13749792 is 29794731.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (13749793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174009 + ... + 174087.

It is an arithmetic number, because the mean of its divisors is an integer number (303240).

Almost surely, 2^13749792 is an apocalyptic number.

13749792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13749792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21833280).

13749792 is an abundant number, since it is smaller than the sum of its proper divisors (29916768).

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

13749792 is a wasteful number, since it uses less digits than its factorization.

13749792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 128 counting only the distinct ones).

The product of its digits is 95256, while the sum is 42.

The square root of 13749792 is about 3708.0711967275. The cubic root of 13749792 is about 239.5697848285.

It can be divided in two parts, 13749 and 792, that added together give a palindrome (14541).

The spelling of 13749792 in words is "thirteen million, seven hundred forty-nine thousand, seven hundred ninety-two".