42193388 has 12 divisors (see below), whose sum is σ = 78181992. Its totient is φ = 19855680.

The previous prime is 42193381. The next prime is 42193399. The reversal of 42193388 is 88339124.

42193388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42193381) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 310178 + ... + 310313.

It is an arithmetic number, because the mean of its divisors is an integer number (6515166).

Almost surely, 2^42193388 is an apocalyptic number.

It is an amenable number.

42193388 is a deficient number, since it is larger than the sum of its proper divisors (35988604).

42193388 is a wasteful number, since it uses less digits than its factorization.

42193388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620512 (or 620510 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 42193388 is about 6495.6437710207. The cubic root of 42193388 is about 348.1353571306.

The spelling of 42193388 in words is "forty-two million, one hundred ninety-three thousand, three hundred eighty-eight".