42111140 has 12 divisors (see below), whose sum is σ = 88433436. Its totient is φ = 16844448.

The previous prime is 42111131. The next prime is 42111211. The reversal of 42111140 is 4111124.

It can be written as a sum of positive squares in 2 ways, for example, as 30713764 + 11397376 = 5542^2 + 3376^2 .

It is a super-2 number, since 2×42111140² = 3546696224199200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052759 + ... + 1052798.

It is an arithmetic number, because the mean of its divisors is an integer number (7369453).

Almost surely, 2^42111140 is an apocalyptic number.

It is an amenable number.

42111140 is an abundant number, since it is smaller than the sum of its proper divisors (46322296).

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

42111140 is a wasteful number, since it uses less digits than its factorization.

42111140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105566 (or 2105564 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 42111140 is about 6489.3096705274. The cubic root of 42111140 is about 347.9090020582.

Adding to 42111140 its reverse (4111124), we get a palindrome (46222264).

The spelling of 42111140 in words is "forty-two million, one hundred eleven thousand, one hundred forty".