42939133 has 8 divisors (see below), whose sum is σ = 43561760. Its totient is φ = 42320880.

The previous prime is 42939131. The next prime is 42939139. The reversal of 42939133 is 33193924.

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 42939133 - 2¹ = 42939131 is a prime.

It is a Duffinian number.

Its product of digits (17496) is a multiple of the sum of its prime divisors (2187).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42939131) 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, 22066 + ... + 23932.

It is an arithmetic number, because the mean of its divisors is an integer number (5445220).

Almost surely, 2^42939133 is an apocalyptic number.

It is an amenable number.

42939133 is a deficient number, since it is larger than the sum of its proper divisors (622627).

42939133 is a wasteful number, since it uses less digits than its factorization.

42939133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187.

The product of its digits is 17496, while the sum is 34.

The square root of 42939133 is about 6552.7958155279. The cubic root of 42939133 is about 350.1744246246.

The spelling of 42939133 in words is "forty-two million, nine hundred thirty-nine thousand, one hundred thirty-three".