42756233 has 8 divisors (see below), whose sum is σ = 47116608. Its totient is φ = 38548944.

The previous prime is 42756151. The next prime is 42756239. The reversal of 42756233 is 33265724.

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 42756233 - 2²⁴ = 25979017 is a prime.

It is a Duffinian number.

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 42756233.

It is not an unprimeable number, because it can be changed into a prime (42756239) 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, 37685 + ... + 38802.

It is an arithmetic number, because the mean of its divisors is an integer number (5889576).

Almost surely, 2^42756233 is an apocalyptic number.

42756233 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

42756233 is a deficient number, since it is larger than the sum of its proper divisors (4360375).

42756233 is a wasteful number, since it uses less digits than its factorization.

42756233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76543.

The product of its digits is 30240, while the sum is 32.

The square root of 42756233 is about 6538.8250473613. The cubic root of 42756233 is about 349.6765256228.

The spelling of 42756233 in words is "forty-two million, seven hundred fifty-six thousand, two hundred thirty-three".