42730733 has 8 divisors (see below), whose sum is σ = 43886976. Its totient is φ = 41580000.

The previous prime is 42730729. The next prime is 42730739. The reversal of 42730733 is 33703724.

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 42730733 - 2² = 42730729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42730696 and 42730705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42730739) 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 7 ways as a sum of consecutive naturals, for example, 17858 + ... + 20108.

It is an arithmetic number, because the mean of its divisors is an integer number (5485872).

Almost surely, 2^42730733 is an apocalyptic number.

It is an amenable number.

42730733 is a deficient number, since it is larger than the sum of its proper divisors (1156243).

42730733 is a wasteful number, since it uses less digits than its factorization.

42730733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755.

The product of its (nonzero) digits is 10584, while the sum is 29.

The square root of 42730733 is about 6536.8748649488. The cubic root of 42730733 is about 349.6069956071.

The spelling of 42730733 in words is "forty-two million, seven hundred thirty thousand, seven hundred thirty-three".