42745233 has 8 divisors (see below), whose sum is σ = 57410208. Its totient is φ = 28288544.

The previous prime is 42745211. The next prime is 42745237. The reversal of 42745233 is 33254724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42745233 - 2⁹ = 42744721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42745233.

It is not an unprimeable number, because it can be changed into a prime (42745237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51591 + ... + 52412.

It is an arithmetic number, because the mean of its divisors is an integer number (7176276).

Almost surely, 2^42745233 is an apocalyptic number.

It is an amenable number.

42745233 is a deficient number, since it is larger than the sum of its proper divisors (14664975).

42745233 is a wasteful number, since it uses less digits than its factorization.

42745233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104143.

The product of its digits is 20160, while the sum is 30.

The square root of 42745233 is about 6537.9838635469. The cubic root of 42745233 is about 349.6465356742.

Adding to 42745233 its reverse (33254724), we get a palindrome (75999957).

The spelling of 42745233 in words is "forty-two million, seven hundred forty-five thousand, two hundred thirty-three".