4978942 has 16 divisors (see below), whose sum is σ = 7803072. Its totient is φ = 2380320.

The previous prime is 4978937. The next prime is 4978957. The reversal of 4978942 is 2498794.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3963 + ... + 5065.

It is an arithmetic number, because the mean of its divisors is an integer number (487692).

Almost surely, 2^4978942 is an apocalyptic number.

4978942 is a deficient number, since it is larger than the sum of its proper divisors (2824130).

4978942 is a wasteful number, since it uses less digits than its factorization.

4978942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203.

The product of its digits is 145152, while the sum is 43.

The square root of 4978942 is about 2231.3542972823. The cubic root of 4978942 is about 170.7571990445.

The spelling of 4978942 in words is "four million, nine hundred seventy-eight thousand, nine hundred forty-two".