42087748 has 24 divisors (see below), whose sum is σ = 75648384. Its totient is φ = 20479200.

The previous prime is 42087737. The next prime is 42087751. The reversal of 42087748 is 84778024.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42087748.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39138 + ... + 40198.

It is an arithmetic number, because the mean of its divisors is an integer number (3152016).

Almost surely, 2^42087748 is an apocalyptic number.

It is an amenable number.

42087748 is a deficient number, since it is larger than the sum of its proper divisors (33560636).

42087748 is a wasteful number, since it uses less digits than its factorization.

42087748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323 (or 1321 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 42087748 is about 6487.5070712871. The cubic root of 42087748 is about 347.8445710096.

The spelling of 42087748 in words is "forty-two million, eighty-seven thousand, seven hundred forty-eight".