42125766 has 16 divisors (see below), whose sum is σ = 84316224. Its totient is φ = 14031144.

The previous prime is 42125761. The next prime is 42125789. The reversal of 42125766 is 66752124.

It is a super-2 number, since 2×42125766² = 3549160322173512, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42125761) 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 7 ways as a sum of consecutive naturals, for example, 11625 + ... + 14811.

It is an arithmetic number, because the mean of its divisors is an integer number (5269764).

Almost surely, 2^42125766 is an apocalyptic number.

42125766 is an abundant number, since it is smaller than the sum of its proper divisors (42190458).

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

42125766 is a wasteful number, since it uses less digits than its factorization.

42125766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5395.

The product of its digits is 20160, while the sum is 33.

The square root of 42125766 is about 6490.4365030405. The cubic root of 42125766 is about 347.9492758675.

The spelling of 42125766 in words is "forty-two million, one hundred twenty-five thousand, seven hundred sixty-six".