42052540 has 24 divisors (see below), whose sum is σ = 88672752. Its totient is φ = 16752000.

The previous prime is 42052513. The next prime is 42052559. The reversal of 42052540 is 4525024.

42052540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42052540² = 3536832240903200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 832 + ... + 9208.

It is an arithmetic number, because the mean of its divisors is an integer number (3694698).

Almost surely, 2^42052540 is an apocalyptic number.

It is an amenable number.

42052540 is an abundant number, since it is smaller than the sum of its proper divisors (46620212).

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

42052540 is a wasteful number, since it uses less digits than its factorization.

42052540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8637 (or 8635 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 42052540 is about 6484.7929805045. The cubic root of 42052540 is about 347.7475488845.

Adding to 42052540 its reverse (4525024), we get a palindrome (46577564).

The spelling of 42052540 in words is "forty-two million, fifty-two thousand, five hundred forty".