42450775 has 12 divisors (see below), whose sum is σ = 53233200. Its totient is φ = 33577280.

The previous prime is 42450773. The next prime is 42450787. The reversal of 42450775 is 57705424.

It is not a de Polignac number, because 42450775 - 2¹ = 42450773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42450775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42450773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7315 + ... + 11764.

It is an arithmetic number, because the mean of its divisors is an integer number (4436100).

Almost surely, 2^42450775 is an apocalyptic number.

42450775 is a deficient number, since it is larger than the sum of its proper divisors (10782425).

42450775 is a wasteful number, since it uses less digits than its factorization.

42450775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19178 (or 19173 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 42450775 is about 6515.4259262154. The cubic root of 42450775 is about 348.8418179555.

The spelling of 42450775 in words is "forty-two million, four hundred fifty thousand, seven hundred seventy-five".