4942942 has 4 divisors (see below), whose sum is σ = 7414416. Its totient is φ = 2471470.

The previous prime is 4942933. The next prime is 4942957. The reversal of 4942942 is 2492494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2492494 = 2 ⋅1246247.

It is a junction number, because it is equal to n+sod(n) for n = 4942898 and 4942907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1235734 + ... + 1235737.

It is an arithmetic number, because the mean of its divisors is an integer number (1853604).

Almost surely, 2^4942942 is an apocalyptic number.

4942942 is a deficient number, since it is larger than the sum of its proper divisors (2471474).

4942942 is a wasteful number, since it uses less digits than its factorization.

4942942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471473.

The product of its digits is 20736, while the sum is 34.

The square root of 4942942 is about 2223.2728127695. The cubic root of 4942942 is about 170.3446525779.

The spelling of 4942942 in words is "four million, nine hundred forty-two thousand, nine hundred forty-two".