42342732 has 18 divisors (see below), whose sum is σ = 107033108. Its totient is φ = 14114232.

The previous prime is 42342721. The next prime is 42342749. The reversal of 42342732 is 23724324.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 42342696 and 42342705.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 588058 + ... + 588129.

Almost surely, 2^42342732 is an apocalyptic number.

It is an amenable number.

42342732 is an abundant number, since it is smaller than the sum of its proper divisors (64690376).

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

42342732 is a wasteful number, since it uses less digits than its factorization.

42342732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176197 (or 1176192 counting only the distinct ones).

The product of its digits is 8064, while the sum is 27.

The square root of 42342732 is about 6507.1293209833. The cubic root of 42342732 is about 348.5456165540.

The spelling of 42342732 in words is "forty-two million, three hundred forty-two thousand, seven hundred thirty-two".