43240425 has 12 divisors (see below), whose sum is σ = 71490960. Its totient is φ = 23061520.

The previous prime is 43240411. The next prime is 43240429. The reversal of 43240425 is 52404234.

It is not a de Polignac number, because 43240425 - 2⁷ = 43240297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43240395 and 43240404.

It is not an unprimeable number, because it can be changed into a prime (43240429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288195 + ... + 288344.

It is an arithmetic number, because the mean of its divisors is an integer number (5957580).

Almost surely, 2^43240425 is an apocalyptic number.

It is an amenable number.

43240425 is a deficient number, since it is larger than the sum of its proper divisors (28250535).

43240425 is a wasteful number, since it uses less digits than its factorization.

43240425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576552 (or 576547 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 43240425 is about 6575.7452049178. The cubic root of 43240425 is about 350.9915420726.

Adding to 43240425 its reverse (52404234), we get a palindrome (95644659).

The spelling of 43240425 in words is "forty-three million, two hundred forty thousand, four hundred twenty-five".