42750140 has 12 divisors (see below), whose sum is σ = 89775336. Its totient is φ = 17100048.

The previous prime is 42750137. The next prime is 42750143. The reversal of 42750140 is 4105724.

It is an interprime number because it is at equal distance from previous prime (42750137) and next prime (42750143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42750143) 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 3 ways as a sum of consecutive naturals, for example, 1068734 + ... + 1068773.

It is an arithmetic number, because the mean of its divisors is an integer number (7481278).

Almost surely, 2^42750140 is an apocalyptic number.

It is an amenable number.

42750140 is an abundant number, since it is smaller than the sum of its proper divisors (47025196).

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

42750140 is a wasteful number, since it uses less digits than its factorization.

42750140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137516 (or 2137514 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 42750140 is about 6538.3591213698. The cubic root of 42750140 is about 349.6599145532.

Adding to 42750140 its reverse (4105724), we get a palindrome (46855864).

The spelling of 42750140 in words is "forty-two million, seven hundred fifty thousand, one hundred forty".