42544372 has 48 divisors (see below), whose sum is σ = 83825280. Its totient is φ = 18764928.

The previous prime is 42544361. The next prime is 42544373. The reversal of 42544372 is 27344524.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42544373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118329 + ... + 118687.

It is an arithmetic number, because the mean of its divisors is an integer number (1746360).

Almost surely, 2^42544372 is an apocalyptic number.

It is an amenable number.

42544372 is a deficient number, since it is larger than the sum of its proper divisors (41280908).

42544372 is a wasteful number, since it uses less digits than its factorization.

42544372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 470 counting only the distinct ones).

The product of its digits is 26880, while the sum is 31.

The square root of 42544372 is about 6522.6046944453. The cubic root of 42544372 is about 349.0980094354.

Adding to 42544372 its reverse (27344524), we get a palindrome (69888896).

The spelling of 42544372 in words is "forty-two million, five hundred forty-four thousand, three hundred seventy-two".