3609812042 has 4 divisors (see below), whose sum is σ = 5414718066. Its totient is φ = 1804906020.

The previous prime is 3609812039. The next prime is 3609812051. The reversal of 3609812042 is 2402189063.

3609812042 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., 3427048681 + 182763361 = 58541^2 + 13519^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3609811993 and 3609812011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902453009 + ... + 902453012.

Almost surely, 2^3609812042 is an apocalyptic number.

3609812042 is a deficient number, since it is larger than the sum of its proper divisors (1804906024).

3609812042 is a wasteful number, since it uses less digits than its factorization.

3609812042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804906023.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 3609812042 is about 60081.7113770904. The cubic root of 3609812042 is about 1534.0100202364.

The spelling of 3609812042 in words is "three billion, six hundred nine million, eight hundred twelve thousand, forty-two".