1962442666 has 4 divisors (see below), whose sum is σ = 2943664002. Its totient is φ = 981221332.

The previous prime is 1962442633. The next prime is 1962442681. The reversal of 1962442666 is 6662442691.

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., 1962047025 + 395641 = 44295^2 + 629^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490610665 + ... + 490610668.

Almost surely, 2^1962442666 is an apocalyptic number.

1962442666 is a deficient number, since it is larger than the sum of its proper divisors (981221336).

1962442666 is an equidigital number, since it uses as much as digits as its factorization.

1962442666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981221335.

The product of its digits is 746496, while the sum is 46.

The square root of 1962442666 is about 44299.4657529862. The cubic root of 1962442666 is about 1251.9846161182.

The spelling of 1962442666 in words is "one billion, nine hundred sixty-two million, four hundred forty-two thousand, six hundred sixty-six".