42738732 has 48 divisors (see below), whose sum is σ = 113393280. Its totient is φ = 13913424.

The previous prime is 42738727. The next prime is 42738743. The reversal of 42738732 is 23783724.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43 + ... + 9245.

It is an arithmetic number, because the mean of its divisors is an integer number (2362360).

Almost surely, 2^42738732 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42738732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56696640).

42738732 is an abundant number, since it is smaller than the sum of its proper divisors (70654548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42738732 is a wasteful number, since it uses less digits than its factorization.

42738732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9259 (or 9251 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 42738732 is about 6537.4866730266. The cubic root of 42738732 is about 349.6288091956.

The spelling of 42738732 in words is "forty-two million, seven hundred thirty-eight thousand, seven hundred thirty-two".