1930249868 has 6 divisors (see below), whose sum is σ = 3377937276. Its totient is φ = 965124932.

The previous prime is 1930249817. The next prime is 1930249891. The reversal of 1930249868 is 8689420391.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 241281230 + ... + 241281237.

It is an arithmetic number, because the mean of its divisors is an integer number (562989546).

Almost surely, 2^1930249868 is an apocalyptic number.

It is an amenable number.

1930249868 is a deficient number, since it is larger than the sum of its proper divisors (1447687408).

1930249868 is a wasteful number, since it uses less digits than its factorization.

1930249868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482562471 (or 482562469 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 1930249868 is about 43934.6090001948. The cubic root of 1930249868 is about 1245.1007951598.

The spelling of 1930249868 in words is "one billion, nine hundred thirty million, two hundred forty-nine thousand, eight hundred sixty-eight".