42737732 has 6 divisors (see below), whose sum is σ = 74791038. Its totient is φ = 21368864.

The previous prime is 42737731. The next prime is 42737753. The reversal of 42737732 is 23773724.

It can be written as a sum of positive squares in only one way, i.e., 39112516 + 3625216 = 6254^2 + 1904^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42737692 and 42737701.

It is not an unprimeable number, because it can be changed into a prime (42737731) by changing a digit.

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 as a sum of consecutive naturals, namely, 5342213 + ... + 5342220.

It is an arithmetic number, because the mean of its divisors is an integer number (12465173).

Almost surely, 2^42737732 is an apocalyptic number.

It is an amenable number.

42737732 is a deficient number, since it is larger than the sum of its proper divisors (32053306).

42737732 is a wasteful number, since it uses less digits than its factorization.

42737732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10684437 (or 10684435 counting only the distinct ones).

The product of its digits is 49392, while the sum is 35.

The square root of 42737732 is about 6537.4101905877. The cubic root of 42737732 is about 349.6260823051.

The spelling of 42737732 in words is "forty-two million, seven hundred thirty-seven thousand, seven hundred thirty-two".