42249292 has 12 divisors (see below), whose sum is σ = 74309200. Its totient is φ = 21018096.

The previous prime is 42249289. The next prime is 42249299. The reversal of 42249292 is 29294224.

It is not an unprimeable number, because it can be changed into a prime (42249299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25743 + ... + 27334.

Almost surely, 2^42249292 is an apocalyptic number.

It is an amenable number.

42249292 is a deficient number, since it is larger than the sum of its proper divisors (32059908).

42249292 is a wasteful number, since it uses less digits than its factorization.

42249292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53280 (or 53278 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 42249292 is about 6499.9455382334. The cubic root of 42249292 is about 348.2890428999.

The spelling of 42249292 in words is "forty-two million, two hundred forty-nine thousand, two hundred ninety-two".