4278740 has 24 divisors (see below), whose sum is σ = 9025800. Its totient is φ = 1703808.

The previous prime is 4278737. The next prime is 4278751. The reversal of 4278740 is 478724.

It can be written as a sum of positive squares in 4 ways, for example, as 26896 + 4251844 = 164^2 + 2062^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4278697 and 4278706.

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, 6674 + ... + 7286.

It is an arithmetic number, because the mean of its divisors is an integer number (376075).

Almost surely, 2^4278740 is an apocalyptic number.

It is an amenable number.

4278740 is an abundant number, since it is smaller than the sum of its proper divisors (4747060).

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

4278740 is a wasteful number, since it uses less digits than its factorization.

4278740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 4278740 is about 2068.5115421481. The cubic root of 4278740 is about 162.3448934177.

The spelling of 4278740 in words is "four million, two hundred seventy-eight thousand, seven hundred forty".