42422499 has 24 divisors (see below), whose sum is σ = 70493280. Its totient is φ = 24081408.

The previous prime is 42422489. The next prime is 42422503. The reversal of 42422499 is 99422424.

42422499 is a `hidden beast` number, since 424 + 224 + 9 + 9 = 666.

It is not a de Polignac number, because 42422499 - 2⁸ = 42422243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42422489) 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, 7747 + ... + 12035.

It is an arithmetic number, because the mean of its divisors is an integer number (2937220).

Almost surely, 2^42422499 is an apocalyptic number.

42422499 is a deficient number, since it is larger than the sum of its proper divisors (28070781).

42422499 is a wasteful number, since it uses less digits than its factorization.

42422499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459 (or 4456 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 42422499 is about 6513.2556375441. The cubic root of 42422499 is about 348.7643475039.

The spelling of 42422499 in words is "forty-two million, four hundred twenty-two thousand, four hundred ninety-nine".