42470828 has 24 divisors (see below), whose sum is σ = 78901200. Its totient is φ = 19934208.

The previous prime is 42470821. The next prime is 42470839. The reversal of 42470828 is 82807424.

It is not an unprimeable number, because it can be changed into a prime (42470821) 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, 41588 + ... + 42596.

It is an arithmetic number, because the mean of its divisors is an integer number (3287550).

Almost surely, 2^42470828 is an apocalyptic number.

It is an amenable number.

42470828 is a deficient number, since it is larger than the sum of its proper divisors (36430372).

42470828 is a wasteful number, since it uses less digits than its factorization.

42470828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649 (or 1647 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 42470828 is about 6516.9646308692. The cubic root of 42470828 is about 348.8967382231.

The spelling of 42470828 in words is "forty-two million, four hundred seventy thousand, eight hundred twenty-eight".