4780278 has 12 divisors (see below), whose sum is σ = 10357308. Its totient is φ = 1593420.

The previous prime is 4780261. The next prime is 4780283. The reversal of 4780278 is 8720874.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132768 + ... + 132803.

It is an arithmetic number, because the mean of its divisors is an integer number (863109).

Almost surely, 2^4780278 is an apocalyptic number.

4780278 is an abundant number, since it is smaller than the sum of its proper divisors (5577030).

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

4780278 is a wasteful number, since it uses less digits than its factorization.

4780278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265579 (or 265576 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 4780278 is about 2186.3846871033. The cubic root of 4780278 is about 168.4551856567.

The spelling of 4780278 in words is "four million, seven hundred eighty thousand, two hundred seventy-eight".