42011140 has 48 divisors (see below), whose sum is σ = 92216880. Its totient is φ = 16056320.

The previous prime is 42011119. The next prime is 42011153. The reversal of 42011140 is 4111024.

It can be written as a sum of positive squares in 8 ways, for example, as 948676 + 41062464 = 974^2 + 6408^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42011140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65220 + ... + 65860.

It is an arithmetic number, because the mean of its divisors is an integer number (1921185).

Almost surely, 2^42011140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42011140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46108440).

42011140 is an abundant number, since it is smaller than the sum of its proper divisors (50205740).

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

42011140 is a wasteful number, since it uses less digits than its factorization.

42011140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 42011140 is about 6481.6001110837. The cubic root of 42011140 is about 347.6333942614.

Adding to 42011140 its reverse (4111024), we get a palindrome (46122164).

The spelling of 42011140 in words is "forty-two million, eleven thousand, one hundred forty".