42209466 has 32 divisors (see below), whose sum is σ = 91650048. Its totient is φ = 12882240.

The previous prime is 42209449. The next prime is 42209473. The reversal of 42209466 is 66490224.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7776 + ... + 12036.

It is an arithmetic number, because the mean of its divisors is an integer number (2864064).

Almost surely, 2^42209466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42209466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45825024).

42209466 is an abundant number, since it is smaller than the sum of its proper divisors (49440582).

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

42209466 is a wasteful number, since it uses less digits than its factorization.

42209466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 42209466 is about 6496.8812518007. The cubic root of 42209466 is about 348.1795710839.

The spelling of 42209466 in words is "forty-two million, two hundred nine thousand, four hundred sixty-six".