42019698 has 32 divisors (see below), whose sum is σ = 96243840. Its totient is φ = 11980800.

The previous prime is 42019673. The next prime is 42019709. The reversal of 42019698 is 89691024.

It is a super-2 number, since 2×42019698² = 3531310040022408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 31648 + ... + 32948.

It is an arithmetic number, because the mean of its divisors is an integer number (3007620).

Almost surely, 2^42019698 is an apocalyptic number.

42019698 is an abundant number, since it is smaller than the sum of its proper divisors (54224142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42019698 is a wasteful number, since it uses less digits than its factorization.

42019698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 42019698 is about 6482.2602539546. The cubic root of 42019698 is about 347.6569978786.

The spelling of 42019698 in words is "forty-two million, nineteen thousand, six hundred ninety-eight".