42704434 has 4 divisors (see below), whose sum is σ = 64056654. Its totient is φ = 21352216.

The previous prime is 42704423. The next prime is 42704437. The reversal of 42704434 is 43440724.

42704434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 41796225 + 908209 = 6465^2 + 953^2 .

It is not an unprimeable number, because it can be changed into a prime (42704437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10676107 + ... + 10676110.

Almost surely, 2^42704434 is an apocalyptic number.

42704434 is a deficient number, since it is larger than the sum of its proper divisors (21352220).

42704434 is a wasteful number, since it uses less digits than its factorization.

42704434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21352219.

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 42704434 is about 6534.8629671937. The cubic root of 42704434 is about 349.5352580027.

The spelling of 42704434 in words is "forty-two million, seven hundred four thousand, four hundred thirty-four".