1942349661 has 24 divisors (see below), whose sum is σ = 3271860800. Its totient is φ = 1109912328.

The previous prime is 1942349659. The next prime is 1942349681. The reversal of 1942349661 is 1669432491.

It is not a de Polignac number, because 1942349661 - 2¹ = 1942349659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942349641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 311515 + ... + 317688.

Almost surely, 2^1942349661 is an apocalyptic number.

It is an amenable number.

1942349661 is a deficient number, since it is larger than the sum of its proper divisors (1329511139).

1942349661 is an equidigital number, since it uses as much as digits as its factorization.

1942349661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629230 (or 629213 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 1942349661 is about 44072.0961720679. The cubic root of 1942349661 is about 1247.6970206479.

The spelling of 1942349661 in words is "one billion, nine hundred forty-two million, three hundred forty-nine thousand, six hundred sixty-one".