40242425 has 12 divisors (see below), whose sum is σ = 50748240. Its totient is φ = 31647120.

The previous prime is 40242407. The next prime is 40242427. The reversal of 40242425 is 52424204.

40242425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40242425 - 2¹⁰ = 40241401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40242425.

It is not an unprimeable number, because it can be changed into a prime (40242427) 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, 12167 + ... + 15116.

It is an arithmetic number, because the mean of its divisors is an integer number (4229020).

Almost surely, 2^40242425 is an apocalyptic number.

It is an amenable number.

40242425 is a deficient number, since it is larger than the sum of its proper divisors (10505815).

40242425 is a wasteful number, since it uses less digits than its factorization.

40242425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27352 (or 27347 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 40242425 is about 6343.6917485010. The cubic root of 40242425 is about 342.6846997824.

Adding to 40242425 its reverse (52424204), we get a palindrome (92666629).

The spelling of 40242425 in words is "forty million, two hundred forty-two thousand, four hundred twenty-five".