3942626 has 4 divisors (see below), whose sum is σ = 5913942. Its totient is φ = 1971312.

The previous prime is 3942619. The next prime is 3942643. The reversal of 3942626 is 6262493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6262493 = 307 ⋅20399.

It can be written as a sum of positive squares in only one way, i.e., 3940225 + 2401 = 1985^2 + 49^2 .

It is a d-powerful number, because it can be written as 3¹⁰ + 9 + 4² + 2⁵ + 6⁸ + 2¹⁹ + 6⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 3942592 and 3942601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985655 + ... + 985658.

Almost surely, 2^3942626 is an apocalyptic number.

3942626 is a deficient number, since it is larger than the sum of its proper divisors (1971316).

3942626 is a wasteful number, since it uses less digits than its factorization.

3942626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971315.

The product of its digits is 15552, while the sum is 32.

The square root of 3942626 is about 1985.6046937898. The cubic root of 3942626 is about 157.9774843737.

The spelling of 3942626 in words is "three million, nine hundred forty-two thousand, six hundred twenty-six".