785432042 has 4 divisors (see below), whose sum is σ = 1178148066. Its totient is φ = 392716020.

The previous prime is 785432017. The next prime is 785432057. The reversal of 785432042 is 240234587.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 404050201 + 381381841 = 20101^2 + 19529^2 .

It is a junction number, because it is equal to n+sod(n) for n = 785431993 and 785432011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196358009 + ... + 196358012.

Almost surely, 2^785432042 is an apocalyptic number.

785432042 is a deficient number, since it is larger than the sum of its proper divisors (392716024).

785432042 is a wasteful number, since it uses less digits than its factorization.

785432042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392716023.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 785432042 is about 28025.5605117899. The cubic root of 785432042 is about 922.6483402632.

The spelling of 785432042 in words is "seven hundred eighty-five million, four hundred thirty-two thousand, forty-two".