240561223 has 16 divisors (see below), whose sum is σ = 294865920. Its totient is φ = 191651616.

The previous prime is 240561197. The next prime is 240561229. The reversal of 240561223 is 322165042.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240561223 is a prime.

It is a super-2 number, since 2×240561223² = 115739404022511458, 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 (240561229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10015 + ... + 24112.

It is an arithmetic number, because the mean of its divisors is an integer number (18429120).

Almost surely, 2^240561223 is an apocalyptic number.

240561223 is a deficient number, since it is larger than the sum of its proper divisors (54304697).

240561223 is a wasteful number, since it uses less digits than its factorization.

240561223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34206.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 240561223 is about 15510.0362024078. The cubic root of 240561223 is about 621.9305269746.

The spelling of 240561223 in words is "two hundred forty million, five hundred sixty-one thousand, two hundred twenty-three".