42922285 has 24 divisors (see below), whose sum is σ = 61391736. Its totient is φ = 28707840.

The previous prime is 42922283. The next prime is 42922289. The reversal of 42922285 is 58222924.

It can be written as a sum of positive squares in 4 ways, for example, as 268324 + 42653961 = 518^2 + 6531^2 .

It is not a de Polignac number, because 42922285 - 2¹ = 42922283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42922285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42922283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7909 + ... + 12181.

It is an arithmetic number, because the mean of its divisors is an integer number (2557989).

Almost surely, 2^42922285 is an apocalyptic number.

It is an amenable number.

42922285 is a deficient number, since it is larger than the sum of its proper divisors (18469451).

42922285 is a wasteful number, since it uses less digits than its factorization.

42922285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4333 (or 4326 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 42922285 is about 6551.5101312598. The cubic root of 42922285 is about 350.1286193953.

The spelling of 42922285 in words is "forty-two million, nine hundred twenty-two thousand, two hundred eighty-five".