240298985668 has 18 divisors (see below), whose sum is σ = 489180078366. Its totient is φ = 102985279488.

The previous prime is 240298985657. The next prime is 240298985737. The reversal of 240298985668 is 866589892042.

It can be written as a sum of positive squares in only one way, i.e., 232586281984 + 7712703684 = 482272^2 + 87822^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 613007421 + ... + 613007812.

Almost surely, 2^240298985668 is an apocalyptic number.

240298985668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

240298985668 is an abundant number, since it is smaller than the sum of its proper divisors (248881092698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240298985668 is a wasteful number, since it uses less digits than its factorization.

240298985668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226015251 (or 1226015242 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 67.

The spelling of 240298985668 in words is "two hundred forty billion, two hundred ninety-eight million, nine hundred eighty-five thousand, six hundred sixty-eight".