2939842 has 4 divisors (see below), whose sum is σ = 4409766. Its totient is φ = 1469920.

The previous prime is 2939821. The next prime is 2939869. The reversal of 2939842 is 2489392.

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., 2927521 + 12321 = 1711^2 + 111^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 734959 + ... + 734962.

2^2939842 is an apocalyptic number.

2939842 is a deficient number, since it is larger than the sum of its proper divisors (1469924).

2939842 is a wasteful number, since it uses less digits than its factorization.

2939842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469923.

The product of its digits is 31104, while the sum is 37.

The square root of 2939842 is about 1714.5967455936. The cubic root of 2939842 is about 143.2544088057.

The spelling of 2939842 in words is "two million, nine hundred thirty-nine thousand, eight hundred forty-two".