42540776 has 16 divisors (see below), whose sum is σ = 80071200. Its totient is φ = 21188464.

The previous prime is 42540763. The next prime is 42540793. The reversal of 42540776 is 67704524.

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, 8006 + ... + 12213.

It is an arithmetic number, because the mean of its divisors is an integer number (5004450).

Almost surely, 2^42540776 is an apocalyptic number.

It is an amenable number.

42540776 is a deficient number, since it is larger than the sum of its proper divisors (37530424).

42540776 is a wasteful number, since it uses less digits than its factorization.

42540776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20488 (or 20484 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 42540776 is about 6522.3290318720. The cubic root of 42540776 is about 349.0881734943.

The spelling of 42540776 in words is "forty-two million, five hundred forty thousand, seven hundred seventy-six".