3942458 has 16 divisors (see below), whose sum is σ = 6491016. Its totient is φ = 1784640.

The previous prime is 3942413. The next prime is 3942467. The reversal of 3942458 is 8542493.

It can be written as a sum of positive squares in 4 ways, for example, as 3214849 + 727609 = 1793^2 + 853^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53 + ... + 2808.

Almost surely, 2^3942458 is an apocalyptic number.

3942458 is a deficient number, since it is larger than the sum of its proper divisors (2548558).

3942458 is a wasteful number, since it uses less digits than its factorization.

3942458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929.

The product of its digits is 34560, while the sum is 35.

The square root of 3942458 is about 1985.5623888460. The cubic root of 3942458 is about 157.9752404721.

Adding to 3942458 its sum of digits (35), we get a palindrome (3942493).

The spelling of 3942458 in words is "three million, nine hundred forty-two thousand, four hundred fifty-eight".