42543772 has 6 divisors (see below), whose sum is σ = 74451608. Its totient is φ = 21271884.

The previous prime is 42543769. The next prime is 42543803. The reversal of 42543772 is 27734524.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5317968 + ... + 5317975.

Almost surely, 2^42543772 is an apocalyptic number.

It is an amenable number.

42543772 is a deficient number, since it is larger than the sum of its proper divisors (31907836).

42543772 is a wasteful number, since it uses less digits than its factorization.

42543772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10635947 (or 10635945 counting only the distinct ones).

The product of its digits is 47040, while the sum is 34.

The square root of 42543772 is about 6522.5587003874. The cubic root of 42543772 is about 349.0963683269.

The spelling of 42543772 in words is "forty-two million, five hundred forty-three thousand, seven hundred seventy-two".