4320925 has 12 divisors (see below), whose sum is σ = 6123616. Its totient is φ = 2962800.

The previous prime is 4320919. The next prime is 4320929. The reversal of 4320925 is 5290234.

It is a happy number.

It is not a de Polignac number, because 4320925 - 2³ = 4320917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4320925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4320929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12171 + ... + 12520.

Almost surely, 2^4320925 is an apocalyptic number.

It is an amenable number.

4320925 is a deficient number, since it is larger than the sum of its proper divisors (1802691).

4320925 is a wasteful number, since it uses less digits than its factorization.

4320925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24708 (or 24703 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 4320925 is about 2078.6834775886. The cubic root of 4320925 is about 162.8766804082.

It can be divided in two parts, 43209 and 25, that added together give a palindrome (43234).

The spelling of 4320925 in words is "four million, three hundred twenty thousand, nine hundred twenty-five".