42066156 has 24 divisors (see below), whose sum is σ = 107077824. Its totient is φ = 12747280.

The previous prime is 42066121. The next prime is 42066173. The reversal of 42066156 is 65166024.

It is a super-2 number, since 2×42066156² = 3539122961232672, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 159210 + ... + 159473.

It is an arithmetic number, because the mean of its divisors is an integer number (4461576).

Almost surely, 2^42066156 is an apocalyptic number.

It is an amenable number.

42066156 is an abundant number, since it is smaller than the sum of its proper divisors (65011668).

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

42066156 is a wasteful number, since it uses less digits than its factorization.

42066156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318701 (or 318699 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 42066156 is about 6485.8427362988. The cubic root of 42066156 is about 347.7850766984.

The spelling of 42066156 in words is "forty-two million, sixty-six thousand, one hundred fifty-six".