42297233 has 8 divisors (see below), whose sum is σ = 47013696. Its totient is φ = 37726000.

The previous prime is 42297221. The next prime is 42297239. The reversal of 42297233 is 33279224.

It is a happy number.

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 42297233 - 2⁶ = 42297169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42297233.

It is not an unprimeable number, because it can be changed into a prime (42297239) 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, 35693 + ... + 36858.

It is an arithmetic number, because the mean of its divisors is an integer number (5876712).

Almost surely, 2^42297233 is an apocalyptic number.

It is an amenable number.

42297233 is a deficient number, since it is larger than the sum of its proper divisors (4716463).

42297233 is a wasteful number, since it uses less digits than its factorization.

42297233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72615.

The product of its digits is 18144, while the sum is 32.

The square root of 42297233 is about 6503.6322928038. The cubic root of 42297233 is about 348.4207296305.

Subtracting from 42297233 its reverse (33279224), we obtain a square (9018009 = 3003²).

The spelling of 42297233 in words is "forty-two million, two hundred ninety-seven thousand, two hundred thirty-three".