42664833 has 16 divisors (see below), whose sum is σ = 63515200. Its totient is φ = 28304640.

The previous prime is 42664813. The next prime is 42664837. The reversal of 42664833 is 33846624.

It is a happy number.

42664833 is a `hidden beast` number, since 4 + 2 + 6 + 648 + 3 + 3 = 666.

It is not a de Polignac number, because 42664833 - 2¹³ = 42656641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42664837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1953 + ... + 9441.

It is an arithmetic number, because the mean of its divisors is an integer number (3969700).

Almost surely, 2^42664833 is an apocalyptic number.

It is an amenable number.

42664833 is a deficient number, since it is larger than the sum of its proper divisors (20850367).

42664833 is a wasteful number, since it uses less digits than its factorization.

42664833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7709 (or 7703 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 42664833 is about 6531.8322850484. The cubic root of 42664833 is about 349.4271800247.

The spelling of 42664833 in words is "forty-two million, six hundred sixty-four thousand, eight hundred thirty-three".