42634633 has 4 divisors (see below), whose sum is σ = 42663808. Its totient is φ = 42605460.

The previous prime is 42634621. The next prime is 42634637. The reversal of 42634633 is 33643624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42634633 - 2⁹ = 42634121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42634595 and 42634604.

It is not an unprimeable number, because it can be changed into a prime (42634637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12273 + ... + 15358.

It is an arithmetic number, because the mean of its divisors is an integer number (10665952).

Almost surely, 2^42634633 is an apocalyptic number.

It is an amenable number.

42634633 is a deficient number, since it is larger than the sum of its proper divisors (29175).

42634633 is a wasteful number, since it uses less digits than its factorization.

42634633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29174.

The product of its digits is 31104, while the sum is 31.

The square root of 42634633 is about 6529.5201201926. The cubic root of 42634633 is about 349.3447140455.

The spelling of 42634633 in words is "forty-two million, six hundred thirty-four thousand, six hundred thirty-three".