2439442 has 4 divisors (see below), whose sum is σ = 3659166. Its totient is φ = 1219720.

The previous prime is 2439427. The next prime is 2439443. The reversal of 2439442 is 2449342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2343961 + 95481 = 1531^2 + 309^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2439442.

It is not an unprimeable number, because it can be changed into a prime (2439443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609859 + ... + 609862.

2^2439442 is an apocalyptic number.

2439442 is a deficient number, since it is larger than the sum of its proper divisors (1219724).

2439442 is a wasteful number, since it uses less digits than its factorization.

2439442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219723.

The product of its digits is 6912, while the sum is 28.

The square root of 2439442 is about 1561.8713135211. The cubic root of 2439442 is about 134.6160466655.

The spelling of 2439442 in words is "two million, four hundred thirty-nine thousand, four hundred forty-two".