13438570 has 32 divisors (see below), whose sum is σ = 25174800. Its totient is φ = 5160960.

The previous prime is 13438561. The next prime is 13438573. The reversal of 13438570 is 7583431.

13438570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 3345241 + 10093329 = 1829^2 + 3177^2 .

It is not an unprimeable number, because it can be changed into a prime (13438573) 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, 29706 + ... + 30154.

Almost surely, 2^13438570 is an apocalyptic number.

13438570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13438570 is a deficient number, since it is larger than the sum of its proper divisors (11736230).

13438570 is a wasteful number, since it uses less digits than its factorization.

13438570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 13438570 is about 3665.8655185372. The cubic root of 13438570 is about 237.7484454618.

The spelling of 13438570 in words is "thirteen million, four hundred thirty-eight thousand, five hundred seventy".