42641250 has 80 divisors (see below), whose sum is σ = 108640224. Its totient is φ = 11152000.

The previous prime is 42641239. The next prime is 42641327. The reversal of 42641250 is 5214624.

It is a self number, because there is not a number n which added to its sum of digits gives 42641250.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 311182 + ... + 311318.

Almost surely, 2^42641250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42641250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54320112).

42641250 is an abundant number, since it is smaller than the sum of its proper divisors (65998974).

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

42641250 is a wasteful number, since it uses less digits than its factorization.

42641250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 230 counting only the distinct ones).

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

The square root of 42641250 is about 6530.0267993324. The cubic root of 42641250 is about 349.3627861638.

Adding to 42641250 its reverse (5214624), we get a palindrome (47855874).

The spelling of 42641250 in words is "forty-two million, six hundred forty-one thousand, two hundred fifty".