42774536 has 32 divisors (see below), whose sum is σ = 94824000. Its totient is φ = 17699136.

The previous prime is 42774517. The next prime is 42774539. The reversal of 42774536 is 63547724.

It is a self number, because there is not a number n which added to its sum of digits gives 42774536.

It is not an unprimeable number, because it can be changed into a prime (42774539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11546 + ... + 14793.

It is an arithmetic number, because the mean of its divisors is an integer number (2963250).

Almost surely, 2^42774536 is an apocalyptic number.

It is an amenable number.

42774536 is an abundant number, since it is smaller than the sum of its proper divisors (52049464).

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

42774536 is a wasteful number, since it uses less digits than its factorization.

42774536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26381 (or 26377 counting only the distinct ones).

The product of its digits is 141120, while the sum is 38.

The square root of 42774536 is about 6540.2244609799. The cubic root of 42774536 is about 349.7264147732.

The spelling of 42774536 in words is "forty-two million, seven hundred seventy-four thousand, five hundred thirty-six".