42166344 has 32 divisors (see below), whose sum is σ = 114999840. Its totient is φ = 12777600.

The previous prime is 42166321. The next prime is 42166351. The reversal of 42166344 is 44366124.

It is a super-3 number, since 3×42166344³ (a number of 24 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79597 + ... + 80124.

It is an arithmetic number, because the mean of its divisors is an integer number (3593745).

Almost surely, 2^42166344 is an apocalyptic number.

42166344 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42166344 is an abundant number, since it is smaller than the sum of its proper divisors (72833496).

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

42166344 is a wasteful number, since it uses less digits than its factorization.

42166344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159741 (or 159737 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 42166344 is about 6493.5617345183. The cubic root of 42166344 is about 348.0609617076.

The spelling of 42166344 in words is "forty-two million, one hundred sixty-six thousand, three hundred forty-four".