240443245 has 24 divisors (see below), whose sum is σ = 341990424. Its totient is φ = 161755776.

The previous prime is 240443243. The next prime is 240443249. The reversal of 240443245 is 542344042.

It can be written as a sum of positive squares in 4 ways, for example, as 24147396 + 216295849 = 4914^2 + 14707^2 .

It is not a de Polignac number, because 240443245 - 2¹ = 240443243 is a prime.

It is a super-2 number, since 2×240443245² = 115625908132260050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240443243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3727 + ... + 22243.

It is an arithmetic number, because the mean of its divisors is an integer number (14249601).

Almost surely, 2^240443245 is an apocalyptic number.

It is an amenable number.

240443245 is a deficient number, since it is larger than the sum of its proper divisors (101547179).

240443245 is a wasteful number, since it uses less digits than its factorization.

240443245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18589 (or 18582 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 240443245 is about 15506.2324566608. The cubic root of 240443245 is about 621.8288395996.

Adding to 240443245 its reverse (542344042), we get a palindrome (782787287).

The spelling of 240443245 in words is "two hundred forty million, four hundred forty-three thousand, two hundred forty-five".