42400275 has 12 divisors (see below), whose sum is σ = 70101912. Its totient is φ = 22613440.

The previous prime is 42400249. The next prime is 42400297. The reversal of 42400275 is 57200424.

42400275 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 42400275 - 2⁵ = 42400243 is a prime.

It is an unprimeable number.

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, 282594 + ... + 282743.

It is an arithmetic number, because the mean of its divisors is an integer number (5841826).

Almost surely, 2^42400275 is an apocalyptic number.

42400275 is a deficient number, since it is larger than the sum of its proper divisors (27701637).

42400275 is a wasteful number, since it uses less digits than its factorization.

42400275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565350 (or 565345 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 42400275 is about 6511.5493548003. The cubic root of 42400275 is about 348.7034341290.

Adding to 42400275 its reverse (57200424), we get a palindrome (99600699).

The spelling of 42400275 in words is "forty-two million, four hundred thousand, two hundred seventy-five".