42372734 has 4 divisors (see below), whose sum is σ = 63559104. Its totient is φ = 21186366.

The previous prime is 42372731. The next prime is 42372751. The reversal of 42372734 is 43727324.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42372734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42372731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10593182 + ... + 10593185.

It is an arithmetic number, because the mean of its divisors is an integer number (15889776).

Almost surely, 2^42372734 is an apocalyptic number.

42372734 is a deficient number, since it is larger than the sum of its proper divisors (21186370).

42372734 is a wasteful number, since it uses less digits than its factorization.

42372734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21186369.

The product of its digits is 28224, while the sum is 32.

The square root of 42372734 is about 6509.4342304074. The cubic root of 42372734 is about 348.6279179414.

The spelling of 42372734 in words is "forty-two million, three hundred seventy-two thousand, seven hundred thirty-four".