240223261 has 4 divisors (see below), whose sum is σ = 240363612. Its totient is φ = 240082912.

The previous prime is 240223253. The next prime is 240223267. The reversal of 240223261 is 162322042.

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 136305625 + 103917636 = 11675^2 + 10194^2 .

It is a cyclic number.

It is not a de Polignac number, because 240223261 - 2³ = 240223253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240223267) 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, 67576 + ... + 71041.

It is an arithmetic number, because the mean of its divisors is an integer number (60090903).

Almost surely, 2^240223261 is an apocalyptic number.

It is an amenable number.

240223261 is a deficient number, since it is larger than the sum of its proper divisors (140351).

240223261 is a wasteful number, since it uses less digits than its factorization.

240223261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140350.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 240223261 is about 15499.1374276119. The cubic root of 240223261 is about 621.6391425337.

The spelling of 240223261 in words is "two hundred forty million, two hundred twenty-three thousand, two hundred sixty-one".