42407233 has 12 divisors (see below), whose sum is σ = 47261284. Its totient is φ = 38016000.

The previous prime is 42407227. The next prime is 42407237. The reversal of 42407233 is 33270424.

It can be written as a sum of positive squares in 2 ways, for example, as 24285184 + 18122049 = 4928^2 + 4257^2 .

It is not a de Polignac number, because 42407233 - 2⁵ = 42407201 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42407198 and 42407207.

It is not an unprimeable number, because it can be changed into a prime (42407237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6433 + ... + 11233.

Almost surely, 2^42407233 is an apocalyptic number.

It is an amenable number.

42407233 is a deficient number, since it is larger than the sum of its proper divisors (4854051).

42407233 is a wasteful number, since it uses less digits than its factorization.

42407233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4896 (or 4885 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 42407233 is about 6512.0836143281. The cubic root of 42407233 is about 348.7225074785.

Adding to 42407233 its reverse (33270424), we get a palindrome (75677657).

The spelling of 42407233 in words is "forty-two million, four hundred seven thousand, two hundred thirty-three".