42745799 has 8 divisors (see below), whose sum is σ = 45271680. Its totient is φ = 40275576.

The previous prime is 42745783. The next prime is 42745819. The reversal of 42745799 is 99754724.

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

It is not a de Polignac number, because 42745799 - 2⁴ = 42745783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42745699) 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, 12329 + ... + 15410.

It is an arithmetic number, because the mean of its divisors is an integer number (5658960).

Almost surely, 2^42745799 is an apocalyptic number.

42745799 is a deficient number, since it is larger than the sum of its proper divisors (2525881).

42745799 is a wasteful number, since it uses less digits than its factorization.

42745799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27829.

The product of its digits is 635040, while the sum is 47.

The square root of 42745799 is about 6538.0271489189. The cubic root of 42745799 is about 349.6480789190.

The spelling of 42745799 in words is "forty-two million, seven hundred forty-five thousand, seven hundred ninety-nine".