39494458 has 4 divisors (see below), whose sum is σ = 59241690. Its totient is φ = 19747228.

The previous prime is 39494443. The next prime is 39494459. The reversal of 39494458 is 85449493.

39494458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85449493 = 73 ⋅1170541.

It can be written as a sum of positive squares in only one way, i.e., 26656569 + 12837889 = 5163^2 + 3583^2 .

It is not an unprimeable number, because it can be changed into a prime (39494459) 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, 9873613 + ... + 9873616.

Almost surely, 2^39494458 is an apocalyptic number.

39494458 is a deficient number, since it is larger than the sum of its proper divisors (19747232).

39494458 is a wasteful number, since it uses less digits than its factorization.

39494458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19747231.

The product of its digits is 622080, while the sum is 46.

The square root of 39494458 is about 6284.4616316754. The cubic root of 39494458 is about 340.5483021546.

The spelling of 39494458 in words is "thirty-nine million, four hundred ninety-four thousand, four hundred fifty-eight".