13939458 has 48 divisors (see below), whose sum is σ = 30831840. Its totient is φ = 4198272.

The previous prime is 13939411. The next prime is 13939463. The reversal of 13939458 is 85493931.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59710 + ... + 59942.

It is an arithmetic number, because the mean of its divisors is an integer number (642330).

Almost surely, 2^13939458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13939458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15415920).

13939458 is an abundant number, since it is smaller than the sum of its proper divisors (16892382).

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

13939458 is a wasteful number, since it uses less digits than its factorization.

13939458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 310 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 13939458 is about 3733.5583563137. The cubic root of 13939458 is about 240.6663081497. Note that the first 3 decimals are identical.

The spelling of 13939458 in words is "thirteen million, nine hundred thirty-nine thousand, four hundred fifty-eight".