42164250 has 64 divisors (see below), whose sum is σ = 111466368. Its totient is φ = 10579200.

The previous prime is 42164207. The next prime is 42164261. The reversal of 42164250 is 5246124.

It is a self number, because there is not a number n which added to its sum of digits gives 42164250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11097 + ... + 14403.

It is an arithmetic number, because the mean of its divisors is an integer number (1741662).

Almost surely, 2^42164250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42164250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55733184).

42164250 is an abundant number, since it is smaller than the sum of its proper divisors (69302118).

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

42164250 is a wasteful number, since it uses less digits than its factorization.

42164250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344 (or 3334 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 42164250 is about 6493.4004958881. The cubic root of 42164250 is about 348.0551999899.

The spelling of 42164250 in words is "forty-two million, one hundred sixty-four thousand, two hundred fifty".