42437728 has 24 divisors (see below), whose sum is σ = 84091392. Its totient is φ = 21081216.

The previous prime is 42437719. The next prime is 42437743. The reversal of 42437728 is 82773424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801 + ... + 9247.

It is an arithmetic number, because the mean of its divisors is an integer number (3503808).

Almost surely, 2^42437728 is an apocalyptic number.

It is an amenable number.

42437728 is a deficient number, since it is larger than the sum of its proper divisors (41653664).

42437728 is a wasteful number, since it uses less digits than its factorization.

42437728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8614 (or 8606 counting only the distinct ones).

The product of its digits is 75264, while the sum is 37.

The square root of 42437728 is about 6514.4246100481. The cubic root of 42437728 is about 348.8060761223.

The spelling of 42437728 in words is "forty-two million, four hundred thirty-seven thousand, seven hundred twenty-eight".