4978242 has 24 divisors (see below), whose sum is σ = 10849644. Its totient is φ = 1649664.

The previous prime is 4978241. The next prime is 4978277. The reversal of 4978242 is 2428794.

4978242 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4968441 + 9801 = 2229^2 + 99^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4978197 and 4978206.

It is not an unprimeable number, because it can be changed into a prime (4978241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2758 + ... + 4190.

Almost surely, 2^4978242 is an apocalyptic number.

4978242 is an abundant number, since it is smaller than the sum of its proper divisors (5871402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4978242 is a wasteful number, since it uses less digits than its factorization.

4978242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634 (or 1631 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 4978242 is about 2231.1974363556. The cubic root of 4978242 is about 170.7491962974.

The spelling of 4978242 in words is "four million, nine hundred seventy-eight thousand, two hundred forty-two".