4978530 has 32 divisors (see below), whose sum is σ = 13276800. Its totient is φ = 1327536.

The previous prime is 4978487. The next prime is 4978543. The reversal of 4978530 is 358794.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8950 + ... + 9489.

It is an arithmetic number, because the mean of its divisors is an integer number (414900).

Almost surely, 2^4978530 is an apocalyptic number.

4978530 is an abundant number, since it is smaller than the sum of its proper divisors (8298270).

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

4978530 is a wasteful number, since it uses less digits than its factorization.

4978530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18455 (or 18449 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 4978530 is about 2231.2619747578. The cubic root of 4978530 is about 170.7524889470.

The spelling of 4978530 in words is "four million, nine hundred seventy-eight thousand, five hundred thirty".