42740733 has 8 divisors (see below), whose sum is σ = 65128768. Its totient is φ = 24423264.

The previous prime is 42740729. The next prime is 42740741. The reversal of 42740733 is 33704724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42740733 - 2² = 42740729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42740733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42740713) 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, 1017616 + ... + 1017657.

It is an arithmetic number, because the mean of its divisors is an integer number (8141096).

Almost surely, 2^42740733 is an apocalyptic number.

It is an amenable number.

42740733 is a deficient number, since it is larger than the sum of its proper divisors (22388035).

42740733 is a wasteful number, since it uses less digits than its factorization.

42740733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035283.

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 42740733 is about 6537.6397117002. The cubic root of 42740733 is about 349.6342655760.

The spelling of 42740733 in words is "forty-two million, seven hundred forty thousand, seven hundred thirty-three".