240421051 has 4 divisors (see below), whose sum is σ = 258914992. Its totient is φ = 221927112.

The previous prime is 240421043. The next prime is 240421063. The reversal of 240421051 is 150124042.

240421051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240421051 - 2³ = 240421043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240421031) 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, 9246951 + ... + 9246976.

It is an arithmetic number, because the mean of its divisors is an integer number (64728748).

Almost surely, 2^240421051 is an apocalyptic number.

240421051 is a deficient number, since it is larger than the sum of its proper divisors (18493941).

240421051 is a wasteful number, since it uses less digits than its factorization.

240421051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18493940.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 240421051 is about 15505.5167924194. The cubic root of 240421051 is about 621.8097064719.

Adding to 240421051 its reverse (150124042), we get a palindrome (390545093).

The spelling of 240421051 in words is "two hundred forty million, four hundred twenty-one thousand, fifty-one".