240612489 has 12 divisors (see below), whose sum is σ = 374286276. Its totient is φ = 148069152.

The previous prime is 240612481. The next prime is 240612497. The reversal of 240612489 is 984216042.

240612489 is a `hidden beast` number, since 2 + 406 + 1 + 248 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (240612481) and next prime (240612497).

It can be written as a sum of positive squares in 2 ways, for example, as 127509264 + 113103225 = 11292^2 + 10635^2 .

It is not a de Polignac number, because 240612489 - 2³ = 240612481 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (240612481) 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, 1028142 + ... + 1028375.

It is an arithmetic number, because the mean of its divisors is an integer number (31190523).

Almost surely, 2^240612489 is an apocalyptic number.

It is an amenable number.

240612489 is a deficient number, since it is larger than the sum of its proper divisors (133673787).

240612489 is a wasteful number, since it uses less digits than its factorization.

240612489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056536 (or 2056533 counting only the distinct ones).

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

The square root of 240612489 is about 15511.6887862025. The cubic root of 240612489 is about 621.9747037062.

The spelling of 240612489 in words is "two hundred forty million, six hundred twelve thousand, four hundred eighty-nine".