42992993 has 8 divisors (see below), whose sum is σ = 44668800. Its totient is φ = 41330128.

The previous prime is 42992987. The next prime is 42993007. The reversal of 42992993 is 39929924.

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 42992993 - 2¹⁰ = 42991969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42992923) 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, 3830 + ... + 10032.

It is an arithmetic number, because the mean of its divisors is an integer number (5583600).

Almost surely, 2^42992993 is an apocalyptic number.

It is an amenable number.

42992993 is a deficient number, since it is larger than the sum of its proper divisors (1675807).

42992993 is a wasteful number, since it uses less digits than its factorization.

42992993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6471.

The product of its digits is 314928, while the sum is 47.

The square root of 42992993 is about 6556.9042237934. The cubic root of 42992993 is about 350.3207753071.

The spelling of 42992993 in words is "forty-two million, nine hundred ninety-two thousand, nine hundred ninety-three".