42478824 has 32 divisors (see below), whose sum is σ = 106686720. Its totient is φ = 14094336.

The previous prime is 42478771. The next prime is 42478831. The reversal of 42478824 is 42887424.

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, 1384 + ... + 9320.

It is an arithmetic number, because the mean of its divisors is an integer number (3333960).

Almost surely, 2^42478824 is an apocalyptic number.

It is an amenable number.

42478824 is an abundant number, since it is smaller than the sum of its proper divisors (64207896).

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

42478824 is a wasteful number, since it uses less digits than its factorization.

42478824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8169 (or 8165 counting only the distinct ones).

The product of its digits is 114688, while the sum is 39.

The square root of 42478824 is about 6517.5780777832. The cubic root of 42478824 is about 348.9186324926.

The spelling of 42478824 in words is "forty-two million, four hundred seventy-eight thousand, eight hundred twenty-four".