42541140 has 96 divisors (see below), whose sum is σ = 127370880. Its totient is φ = 10571776.

The previous prime is 42541117. The next prime is 42541151. The reversal of 42541140 is 4114524.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182464 + ... + 182696.

It is an arithmetic number, because the mean of its divisors is an integer number (1326780).

Almost surely, 2^42541140 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 42541140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63685440).

42541140 is an abundant number, since it is smaller than the sum of its proper divisors (84829740).

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

42541140 is a wasteful number, since it uses less digits than its factorization.

42541140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 42541140 is about 6522.3569359550. The cubic root of 42541140 is about 349.0891691487.

Adding to 42541140 its reverse (4114524), we get a palindrome (46655664).

The spelling of 42541140 in words is "forty-two million, five hundred forty-one thousand, one hundred forty".