42008732 has 12 divisors (see below), whose sum is σ = 74613000. Its totient is φ = 20690736.

The previous prime is 42008693. The next prime is 42008749. The reversal of 42008732 is 23780024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78107 + ... + 78642.

It is an arithmetic number, because the mean of its divisors is an integer number (6217750).

Almost surely, 2^42008732 is an apocalyptic number.

It is an amenable number.

42008732 is a deficient number, since it is larger than the sum of its proper divisors (32604268).

42008732 is a wasteful number, since it uses less digits than its factorization.

42008732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156820 (or 156818 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 42008732 is about 6481.4143518217. The cubic root of 42008732 is about 347.6267522358.

Adding to 42008732 its reverse (23780024), we get a palindrome (65788756).

The spelling of 42008732 in words is "forty-two million, eight thousand, seven hundred thirty-two".