3447442 has 4 divisors (see below), whose sum is σ = 5171166. Its totient is φ = 1723720.

The previous prime is 3447419. The next prime is 3447443. The reversal of 3447442 is 2447443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2447443 = 67 ⋅36529.

It can be written as a sum of positive squares in only one way, i.e., 2621161 + 826281 = 1619^2 + 909^2 .

It is a d-powerful number, because it can be written as 3⁷ + 4² + 4⁴ + 7⁷ + 4⁹ + 4⁹ + 2²¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 3447442.

It is not an unprimeable number, because it can be changed into a prime (3447443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861859 + ... + 861862.

Almost surely, 2^3447442 is an apocalyptic number.

3447442 is a deficient number, since it is larger than the sum of its proper divisors (1723724).

3447442 is a wasteful number, since it uses less digits than its factorization.

3447442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723723.

The product of its digits is 10752, while the sum is 28.

The square root of 3447442 is about 1856.7288439619. The cubic root of 3447442 is about 151.0656264889.

Subtracting from 3447442 its reverse (2447443), we obtain a palindrome (999999).

The spelling of 3447442 in words is "three million, four hundred forty-seven thousand, four hundred forty-two".