13858244 has 6 divisors (see below), whose sum is σ = 24251934. Its totient is φ = 6929120.

The previous prime is 13858241. The next prime is 13858249. The reversal of 13858244 is 44285831.

It can be written as a sum of positive squares in only one way, i.e., 13542400 + 315844 = 3680^2 + 562^2 .

It is not an unprimeable number, because it can be changed into a prime (13858241) 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 as a sum of consecutive naturals, namely, 1732277 + ... + 1732284.

It is an arithmetic number, because the mean of its divisors is an integer number (4041989).

Almost surely, 2^13858244 is an apocalyptic number.

It is an amenable number.

13858244 is a deficient number, since it is larger than the sum of its proper divisors (10393690).

13858244 is a wasteful number, since it uses less digits than its factorization.

13858244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3464565 (or 3464563 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 13858244 is about 3722.6662488061. Note that the first 3 decimals coincide. The cubic root of 13858244 is about 240.1980078884.

The spelling of 13858244 in words is "thirteen million, eight hundred fifty-eight thousand, two hundred forty-four".