42333309 has 12 divisors (see below), whose sum is σ = 61743136. Its totient is φ = 27947592.

The previous prime is 42333307. The next prime is 42333341. The reversal of 42333309 is 90333324.

It is not a de Polignac number, because 42333309 - 2¹ = 42333307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42333307) 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, 21907 + ... + 23760.

Almost surely, 2^42333309 is an apocalyptic number.

It is an amenable number.

42333309 is a deficient number, since it is larger than the sum of its proper divisors (19409827).

42333309 is a wasteful number, since it uses less digits than its factorization.

42333309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45776 (or 45773 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

The square root of 42333309 is about 6506.4052286958. The cubic root of 42333309 is about 348.5197593891.

The spelling of 42333309 in words is "forty-two million, three hundred thirty-three thousand, three hundred nine".