240988857849 has 12 divisors (see below), whose sum is σ = 356190250416. Its totient is φ = 156922976952.

The previous prime is 240988857841. The next prime is 240988857869. The reversal of 240988857849 is 948758889042.

240988857849 is a `hidden beast` number, since 2 + 4 + 0 + 9 + 8 + 8 + 8 + 578 + 49 = 666.

It is not a de Polignac number, because 240988857849 - 2³ = 240988857841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240988857841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 311354727 + ... + 311355500.

It is an arithmetic number, because the mean of its divisors is an integer number (29682520868).

Almost surely, 2^240988857849 is an apocalyptic number.

It is an amenable number.

240988857849 is a deficient number, since it is larger than the sum of its proper divisors (115201392567).

240988857849 is a wasteful number, since it uses less digits than its factorization.

240988857849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622710276 (or 622710273 counting only the distinct ones).

The product of its (nonzero) digits is 371589120, while the sum is 72.

The spelling of 240988857849 in words is "two hundred forty billion, nine hundred eighty-eight million, eight hundred fifty-seven thousand, eight hundred forty-nine".