42109750 has 32 divisors (see below), whose sum is σ = 79354080. Its totient is φ = 16732000.

The previous prime is 42109741. The next prime is 42109751. The reversal of 42109750 is 5790124.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42109751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44280 + ... + 45220.

It is an arithmetic number, because the mean of its divisors is an integer number (2479815).

Almost surely, 2^42109750 is an apocalyptic number.

42109750 is a deficient number, since it is larger than the sum of its proper divisors (37244330).

42109750 is a wasteful number, since it uses less digits than its factorization.

42109750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 42109750 is about 6489.2025704242. The cubic root of 42109750 is about 347.9051741018.

Adding to 42109750 its reverse (5790124), we get a palindrome (47899874).

The spelling of 42109750 in words is "forty-two million, one hundred nine thousand, seven hundred fifty".