784942042 has 16 divisors (see below), whose sum is σ = 1198955520. Its totient is φ = 385354368.

The previous prime is 784942033. The next prime is 784942069. The reversal of 784942042 is 240249487.

It is a super-2 number, since 2×784942042² = 1232268018598259528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 784941986 and 784942004.

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, 8709 + ... + 40567.

It is an arithmetic number, because the mean of its divisors is an integer number (74934720).

Almost surely, 2^784942042 is an apocalyptic number.

784942042 is a deficient number, since it is larger than the sum of its proper divisors (414013478).

784942042 is a wasteful number, since it uses less digits than its factorization.

784942042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32085.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 784942042 is about 28016.8171282892. The cubic root of 784942042 is about 922.4564324085.

The spelling of 784942042 in words is "seven hundred eighty-four million, nine hundred forty-two thousand, forty-two".