13047738 has 64 divisors (see below), whose sum is σ = 31259520. Its totient is φ = 3584000.

The previous prime is 13047707. The next prime is 13047751. The reversal of 13047738 is 83774031.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 13047699 and 13047708.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32338 + ... + 32738.

It is an arithmetic number, because the mean of its divisors is an integer number (488430).

Almost surely, 2^13047738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13047738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15629760).

13047738 is an abundant number, since it is smaller than the sum of its proper divisors (18211782).

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

13047738 is a wasteful number, since it uses less digits than its factorization.

13047738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 13047738 is about 3612.1652786106. The cubic root of 13047738 is about 235.4209326121.

The spelling of 13047738 in words is "thirteen million, forty-seven thousand, seven hundred thirty-eight".