240767221 has 4 divisors (see below), whose sum is σ = 253439200. Its totient is φ = 228095244.

The previous prime is 240767207. The next prime is 240767231. The reversal of 240767221 is 122767042.

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 not a de Polignac number, because 240767221 - 2¹⁵ = 240734453 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 (240767201) 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, 6335961 + ... + 6335998.

It is an arithmetic number, because the mean of its divisors is an integer number (63359800).

Almost surely, 2^240767221 is an apocalyptic number.

It is an amenable number.

240767221 is a deficient number, since it is larger than the sum of its proper divisors (12671979).

240767221 is a wasteful number, since it uses less digits than its factorization.

240767221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12671978.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 240767221 is about 15516.6755782287. The cubic root of 240767221 is about 622.1080007043.

The spelling of 240767221 in words is "two hundred forty million, seven hundred sixty-seven thousand, two hundred twenty-one".