42549424 has 10 divisors (see below), whose sum is σ = 82439540. Its totient is φ = 21274704.

The previous prime is 42549421. The next prime is 42549427. The reversal of 42549424 is 42494524.

It is an interprime number because it is at equal distance from previous prime (42549421) and next prime (42549427).

It is a self number, because there is not a number n which added to its sum of digits gives 42549424.

It is not an unprimeable number, because it can be changed into a prime (42549421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1329654 + ... + 1329685.

It is an arithmetic number, because the mean of its divisors is an integer number (8243954).

Almost surely, 2^42549424 is an apocalyptic number.

It is an amenable number.

42549424 is a deficient number, since it is larger than the sum of its proper divisors (39890116).

42549424 is a wasteful number, since it uses less digits than its factorization.

42549424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659347 (or 2659341 counting only the distinct ones).

The product of its digits is 46080, while the sum is 34.

The square root of 42549424 is about 6522.9919515511. The cubic root of 42549424 is about 349.1118269570. Note that the first 3 decimals are identical.

The spelling of 42549424 in words is "forty-two million, five hundred forty-nine thousand, four hundred twenty-four".