42194012 has 12 divisors (see below), whose sum is σ = 84388080. Its totient is φ = 18083136.

The previous prime is 42194011. The next prime is 42194057. The reversal of 42194012 is 21049124.

42194012 is an admirable number.

It is a super-2 number, since 2×42194012² = 3560669297312288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42194011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753437 + ... + 753492.

It is an arithmetic number, because the mean of its divisors is an integer number (7032340).

Almost surely, 2^42194012 is an apocalyptic number.

It is an amenable number.

42194012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42194012 is a wasteful number, since it uses less digits than its factorization.

42194012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506940 (or 1506938 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 42194012 is about 6495.6918030338. The cubic root of 42194012 is about 348.1370733188.

The spelling of 42194012 in words is "forty-two million, one hundred ninety-four thousand, twelve".