245663788 has 6 divisors (see below), whose sum is σ = 429911636. Its totient is φ = 122831892.

The previous prime is 245663779. The next prime is 245663807. The reversal of 245663788 is 887366542.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30707970 + ... + 30707977.

Almost surely, 2^245663788 is an apocalyptic number.

It is an amenable number.

245663788 is a deficient number, since it is larger than the sum of its proper divisors (184247848).

245663788 is a wasteful number, since it uses less digits than its factorization.

245663788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61415951 (or 61415949 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 49.

The square root of 245663788 is about 15673.6654296307. The cubic root of 245663788 is about 626.2970720644.

The spelling of 245663788 in words is "two hundred forty-five million, six hundred sixty-three thousand, seven hundred eighty-eight".