240539249 has 4 divisors (see below), whose sum is σ = 240576240. Its totient is φ = 240502260.

The previous prime is 240539219. The next prime is 240539353. The reversal of 240539249 is 942935042.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240539249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240539219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5867 + ... + 22704.

It is an arithmetic number, because the mean of its divisors is an integer number (60144060).

Almost surely, 2^240539249 is an apocalyptic number.

It is an amenable number.

240539249 is a deficient number, since it is larger than the sum of its proper divisors (36991).

240539249 is an equidigital number, since it uses as much as digits as its factorization.

240539249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36990.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 240539249 is about 15509.3278061946. The cubic root of 240539249 is about 621.9115897059.

Subtracting from 240539249 its sum of digits (38), we obtain a triangular number (240539211 = T₂₁₉₃₃).

The spelling of 240539249 in words is "two hundred forty million, five hundred thirty-nine thousand, two hundred forty-nine".