42791198 has 4 divisors (see below), whose sum is σ = 64186800. Its totient is φ = 21395598.

The previous prime is 42791183. The next prime is 42791207. The reversal of 42791198 is 89119724.

42791198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10697798 + ... + 10697801.

It is an arithmetic number, because the mean of its divisors is an integer number (16046700).

Almost surely, 2^42791198 is an apocalyptic number.

42791198 is a deficient number, since it is larger than the sum of its proper divisors (21395602).

42791198 is a wasteful number, since it uses less digits than its factorization.

42791198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21395601.

The product of its digits is 36288, while the sum is 41.

The square root of 42791198 is about 6541.4981464493. The cubic root of 42791198 is about 349.7718186171.

The spelling of 42791198 in words is "forty-two million, seven hundred ninety-one thousand, one hundred ninety-eight".