42934820 has 24 divisors (see below), whose sum is σ = 91010304. Its totient is φ = 17012576.

The previous prime is 42934817. The next prime is 42934849. The reversal of 42934820 is 2843924.

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, 7892 + ... + 12171.

It is an arithmetic number, because the mean of its divisors is an integer number (3792096).

Almost surely, 2^42934820 is an apocalyptic number.

It is an amenable number.

42934820 is an abundant number, since it is smaller than the sum of its proper divisors (48075484).

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

42934820 is a wasteful number, since it uses less digits than its factorization.

42934820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20179 (or 20177 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 42934820 is about 6552.4667110944. The cubic root of 42934820 is about 350.1626998664.

The spelling of 42934820 in words is "forty-two million, nine hundred thirty-four thousand, eight hundred twenty".