240539245 has 4 divisors (see below), whose sum is σ = 288647100. Its totient is φ = 192431392.

The previous prime is 240539219. The next prime is 240539353. The reversal of 240539245 is 542935042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 185749641 + 54789604 = 13629^2 + 7402^2 .

It is a cyclic number.

It is not a de Polignac number, because 240539245 - 2⁵ = 240539213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240539245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24053920 + ... + 24053929.

It is an arithmetic number, because the mean of its divisors is an integer number (72161775).

Almost surely, 2^240539245 is an apocalyptic number.

It is an amenable number.

240539245 is a deficient number, since it is larger than the sum of its proper divisors (48107855).

240539245 is an equidigital number, since it uses as much as digits as its factorization.

240539245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48107854.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 240539245 is about 15509.3276772399. The cubic root of 240539245 is about 621.9115862586.

Subtracting from 240539245 its sum of digits (34), we obtain a triangular number (240539211 = T₂₁₉₃₃).

The spelling of 240539245 in words is "two hundred forty million, five hundred thirty-nine thousand, two hundred forty-five".