4280725 has 12 divisors (see below), whose sum is σ = 5374656. Its totient is φ = 3381680.

The previous prime is 4280659. The next prime is 4280741. The reversal of 4280725 is 5270824.

It is not a de Polignac number, because 4280725 - 2¹³ = 4272533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4280693 and 4280702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1044 + ... + 3106.

It is an arithmetic number, because the mean of its divisors is an integer number (447888).

Almost surely, 2^4280725 is an apocalyptic number.

It is an amenable number.

4280725 is a deficient number, since it is larger than the sum of its proper divisors (1093931).

4280725 is a wasteful number, since it uses less digits than its factorization.

4280725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156 (or 2151 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 4280725 is about 2068.9913001267. The cubic root of 4280725 is about 162.3699946385.

Subtracting 4280725 from its reverse (5270824), we obtain a palindrome (990099).

It can be divided in two parts, 4280 and 725, that added together give a palindrome (5005).

The spelling of 4280725 in words is "four million, two hundred eighty thousand, seven hundred twenty-five".