3942423 has 6 divisors (see below), whose sum is σ = 5694624. Its totient is φ = 2628276.

The previous prime is 3942413. The next prime is 3942467. The reversal of 3942423 is 3242493.

It is a happy number.

It is not a de Polignac number, because 3942423 - 2⁶ = 3942359 is a prime.

It is a super-2 number, since 2×3942423² = 31085398221858, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3¹¹ + 9 + 4³ + 2¹³ + 4⁸ + 2²¹ + 3¹³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3942403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 219015 + ... + 219032.

It is an arithmetic number, because the mean of its divisors is an integer number (949104).

Almost surely, 2^3942423 is an apocalyptic number.

3942423 is a deficient number, since it is larger than the sum of its proper divisors (1752201).

3942423 is a wasteful number, since it uses less digits than its factorization.

3942423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438053 (or 438050 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 3942423 is about 1985.5535752026. The cubic root of 3942423 is about 157.9747729846.

The spelling of 3942423 in words is "three million, nine hundred forty-two thousand, four hundred twenty-three".