42922287 has 12 divisors (see below), whose sum is σ = 62055864. Its totient is φ = 28588560.

The previous prime is 42922283. The next prime is 42922289. The reversal of 42922287 is 78222924.

It is a happy number.

42922287 is a `hidden beast` number, since 429 + 2 + 228 + 7 = 666.

It is not a de Polignac number, because 42922287 - 2² = 42922283 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 16837 + ... + 19217.

It is an arithmetic number, because the mean of its divisors is an integer number (5171322).

Almost surely, 2^42922287 is an apocalyptic number.

42922287 is a deficient number, since it is larger than the sum of its proper divisors (19133577).

42922287 is a wasteful number, since it uses less digits than its factorization.

42922287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4390 (or 4387 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 42922287 is about 6551.5102838964. The cubic root of 42922287 is about 350.1286248335.

The spelling of 42922287 in words is "forty-two million, nine hundred twenty-two thousand, two hundred eighty-seven".