42784268 has 12 divisors (see below), whose sum is σ = 75462912. Its totient is φ = 21223440.

The previous prime is 42784253. The next prime is 42784277. The reversal of 42784268 is 86248724.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41603 + ... + 42618.

It is an arithmetic number, because the mean of its divisors is an integer number (6288576).

Almost surely, 2^42784268 is an apocalyptic number.

It is an amenable number.

42784268 is a deficient number, since it is larger than the sum of its proper divisors (32678644).

42784268 is a wasteful number, since it uses less digits than its factorization.

42784268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84352 (or 84350 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 42784268 is about 6540.9684298275. The cubic root of 42784268 is about 349.7529358431.

The spelling of 42784268 in words is "forty-two million, seven hundred eighty-four thousand, two hundred sixty-eight".