240793821 has 12 divisors (see below), whose sum is σ = 366119520. Its totient is φ = 152080200.

The previous prime is 240793801. The next prime is 240793829. The reversal of 240793821 is 128397042.

It is not a de Polignac number, because 240793821 - 2⁵ = 240793789 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240793829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 703905 + ... + 704246.

It is an arithmetic number, because the mean of its divisors is an integer number (30509960).

Almost surely, 2^240793821 is an apocalyptic number.

It is an amenable number.

240793821 is a deficient number, since it is larger than the sum of its proper divisors (125325699).

240793821 is a wasteful number, since it uses less digits than its factorization.

240793821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408176 (or 1408173 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 240793821 is about 15517.5326969206. The cubic root of 240793821 is about 622.1309100568.

The spelling of 240793821 in words is "two hundred forty million, seven hundred ninety-three thousand, eight hundred twenty-one".