4278930 has 64 divisors (see below), whose sum is σ = 10948608. Its totient is φ = 1068480.

The previous prime is 4278893. The next prime is 4278931. The reversal of 4278930 is 398724.

It is a junction number, because it is equal to n+sod(n) for n = 4278891 and 4278900.

It is not an unprimeable number, because it can be changed into a prime (4278931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39937 + ... + 40043.

It is an arithmetic number, because the mean of its divisors is an integer number (171072).

Almost surely, 2^4278930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4278930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5474304).

4278930 is an abundant number, since it is smaller than the sum of its proper divisors (6669678).

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

4278930 is a wasteful number, since it uses less digits than its factorization.

4278930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 4278930 is about 2068.5574683823. The cubic root of 4278930 is about 162.3472963894.

The spelling of 4278930 in words is "four million, two hundred seventy-eight thousand, nine hundred thirty".