43420325 has 36 divisors (see below), whose sum is σ = 59906880. Its totient is φ = 31187520.

The previous prime is 43420319. The next prime is 43420331. The reversal of 43420325 is 52302434.

It is an interprime number because it is at equal distance from previous prime (43420319) and next prime (43420331).

It is not a de Polignac number, because 43420325 - 2¹⁰ = 43419301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43420325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 181556 + ... + 181794.

It is an arithmetic number, because the mean of its divisors is an integer number (1664080).

Almost surely, 2^43420325 is an apocalyptic number.

It is an amenable number.

43420325 is a deficient number, since it is larger than the sum of its proper divisors (16486555).

43420325 is a wasteful number, since it uses less digits than its factorization.

43420325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 43420325 is about 6589.4100646416. The cubic root of 43420325 is about 351.4776305095.

Adding to 43420325 its reverse (52302434), we get a palindrome (95722759).

The spelling of 43420325 in words is "forty-three million, four hundred twenty thousand, three hundred twenty-five".