42742028 has 24 divisors (see below), whose sum is σ = 85774752. Its totient is φ = 18255744.

The previous prime is 42742003. The next prime is 42742031. The reversal of 42742028 is 82024724.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6326 + ... + 11202.

It is an arithmetic number, because the mean of its divisors is an integer number (3573948).

Almost surely, 2^42742028 is an apocalyptic number.

It is an amenable number.

42742028 is an abundant number, since it is smaller than the sum of its proper divisors (43032724).

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

42742028 is a wasteful number, since it uses less digits than its factorization.

42742028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5201 (or 5199 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 42742028 is about 6537.7387528105. The cubic root of 42742028 is about 349.6377967258.

The spelling of 42742028 in words is "forty-two million, seven hundred forty-two thousand, twenty-eight".