42207750 has 192 divisors, whose sum is σ = 130178880. Its totient is φ = 10108800.

The previous prime is 42207727. The next prime is 42207751. The reversal of 42207750 is 5770224.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42207751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1140732 + ... + 1140768.

It is an arithmetic number, because the mean of its divisors is an integer number (678015).

Almost surely, 2^42207750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42207750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65089440).

42207750 is an abundant number, since it is smaller than the sum of its proper divisors (87971130).

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

42207750 is a wasteful number, since it uses less digits than its factorization.

42207750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 42207750 is about 6496.7491870935. The cubic root of 42207750 is about 348.1748526775.

Adding to 42207750 its reverse (5770224), we get a palindrome (47977974).

The spelling of 42207750 in words is "forty-two million, two hundred seven thousand, seven hundred fifty".