13749470 has 32 divisors (see below), whose sum is σ = 28574208. Its totient is φ = 4665888.

The previous prime is 13749467. The next prime is 13749479. The reversal of 13749470 is 7494731.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 13749470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13749479) 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, 6257 + ... + 8163.

It is an arithmetic number, because the mean of its divisors is an integer number (892944).

Almost surely, 2^13749470 is an apocalyptic number.

13749470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13749470 is an abundant number, since it is smaller than the sum of its proper divisors (14824738).

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

13749470 is a wasteful number, since it uses less digits than its factorization.

13749470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 13749470 is about 3708.0277776737. The cubic root of 13749470 is about 239.5679146893.

The spelling of 13749470 in words is "thirteen million, seven hundred forty-nine thousand, four hundred seventy".