42274245 has 16 divisors (see below), whose sum is σ = 72842112. Its totient is φ = 20811840.

The previous prime is 42274217. The next prime is 42274247. The reversal of 42274245 is 54247224.

It is not a de Polignac number, because 42274245 - 2⁸ = 42273989 is a prime.

It is a super-2 number, since 2×42274245² = 3574223580640050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42274247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108201 + ... + 108590.

It is an arithmetic number, because the mean of its divisors is an integer number (4552632).

Almost surely, 2^42274245 is an apocalyptic number.

It is an amenable number.

42274245 is a deficient number, since it is larger than the sum of its proper divisors (30567867).

42274245 is a wasteful number, since it uses less digits than its factorization.

42274245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216812.

The product of its digits is 17920, while the sum is 30.

The square root of 42274245 is about 6501.8647325210. The cubic root of 42274245 is about 348.3575974693.

The spelling of 42274245 in words is "forty-two million, two hundred seventy-four thousand, two hundred forty-five".