2042664406 has 4 divisors (see below), whose sum is σ = 3063996612. Its totient is φ = 1021332202.

The previous prime is 2042664401. The next prime is 2042664419. The reversal of 2042664406 is 6044662402.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042664401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510666100 + ... + 510666103.

It is an arithmetic number, because the mean of its divisors is an integer number (765999153).

Almost surely, 2^2042664406 is an apocalyptic number.

2042664406 is a deficient number, since it is larger than the sum of its proper divisors (1021332206).

2042664406 is a wasteful number, since it uses less digits than its factorization.

2042664406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021332205.

The product of its (nonzero) digits is 55296, while the sum is 34.

The square root of 2042664406 is about 45195.8450081421. The cubic root of 2042664406 is about 1268.8170533580.

The spelling of 2042664406 in words is "two billion, forty-two million, six hundred sixty-four thousand, four hundred six".