42661052 has 12 divisors (see below), whose sum is σ = 85322160. Its totient is φ = 18283296.

The previous prime is 42661049. The next prime is 42661057. The reversal of 42661052 is 25016624.

42661052 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42661057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761777 + ... + 761832.

It is an arithmetic number, because the mean of its divisors is an integer number (7110180).

Almost surely, 2^42661052 is an apocalyptic number.

It is an amenable number.

42661052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42661052 is a wasteful number, since it uses less digits than its factorization.

42661052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523620 (or 1523618 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 42661052 is about 6531.5428498939. The cubic root of 42661052 is about 349.4168575249.

Adding to 42661052 its reverse (25016624), we get a palindrome (67677676).

The spelling of 42661052 in words is "forty-two million, six hundred sixty-one thousand, fifty-two".