3646042 has 4 divisors (see below), whose sum is σ = 5469066. Its totient is φ = 1823020.

The previous prime is 3646039. The next prime is 3646057. The reversal of 3646042 is 2406463.

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., 3493161 + 152881 = 1869^2 + 391^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3645998 and 3646016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911509 + ... + 911512.

Almost surely, 2^3646042 is an apocalyptic number.

3646042 is a deficient number, since it is larger than the sum of its proper divisors (1823024).

3646042 is a wasteful number, since it uses less digits than its factorization.

3646042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823023.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 3646042 is about 1909.4611805428. The cubic root of 3646042 is about 153.9124987826.

The spelling of 3646042 in words is "three million, six hundred forty-six thousand, forty-two".