240126489 has 6 divisors (see below), whose sum is σ = 346849386. Its totient is φ = 160084320.

The previous prime is 240126437. The next prime is 240126493. The reversal of 240126489 is 984621042.

240126489 is a `hidden beast` number, since 2 + 4 + 0 + 1 + 2 + 648 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 237776400 + 2350089 = 15420^2 + 1533^2 .

It is not a de Polignac number, because 240126489 - 2¹⁷ = 239995417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240126499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13340352 + ... + 13340369.

It is an arithmetic number, because the mean of its divisors is an integer number (57808231).

Almost surely, 2^240126489 is an apocalyptic number.

It is an amenable number.

240126489 is a deficient number, since it is larger than the sum of its proper divisors (106722897).

240126489 is a wasteful number, since it uses less digits than its factorization.

240126489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26680727 (or 26680724 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 240126489 is about 15496.0152619956. The cubic root of 240126489 is about 621.5556572200. Note that the first 3 decimals are identical.

The spelling of 240126489 in words is "two hundred forty million, one hundred twenty-six thousand, four hundred eighty-nine".