42254250 has 64 divisors (see below), whose sum is σ = 107557632. Its totient is φ = 11044800.

The previous prime is 42254239. The next prime is 42254257. The reversal of 42254250 is 5245224.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42254250.

It is not an unprimeable number, because it can be changed into a prime (42254257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39219 + ... + 40281.

It is an arithmetic number, because the mean of its divisors is an integer number (1680588).

Almost surely, 2^42254250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42254250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53778816).

42254250 is an abundant number, since it is smaller than the sum of its proper divisors (65303382).

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

42254250 is a wasteful number, since it uses less digits than its factorization.

42254250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 42254250 is about 6500.3269148559. The cubic root of 42254250 is about 348.3026663986.

Adding to 42254250 its reverse (5245224), we get a palindrome (47499474).

The spelling of 42254250 in words is "forty-two million, two hundred fifty-four thousand, two hundred fifty".