3942229 has 4 divisors (see below), whose sum is σ = 3949984. Its totient is φ = 3934476.

The previous prime is 3942227. The next prime is 3942241. The reversal of 3942229 is 9222493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3942229 - 2¹ = 3942227 is a prime.

It is a d-powerful number, because it can be written as 3⁷ + 9³ + 4⁹ + 2²⁰ + 2²⁰ + 2²⁰ + 9⁶ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3942229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3942227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3057 + ... + 4150.

It is an arithmetic number, because the mean of its divisors is an integer number (987496).

Almost surely, 2^3942229 is an apocalyptic number.

It is an amenable number.

3942229 is a deficient number, since it is larger than the sum of its proper divisors (7755).

3942229 is an equidigital number, since it uses as much as digits as its factorization.

3942229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7754.

The product of its digits is 7776, while the sum is 31.

The square root of 3942229 is about 1985.5047217269. The cubic root of 3942229 is about 157.9721817179.

The spelling of 3942229 in words is "three million, nine hundred forty-two thousand, two hundred twenty-nine".