240646053 has 4 divisors (see below), whose sum is σ = 320861408. Its totient is φ = 160430700.

The previous prime is 240646027. The next prime is 240646061. The reversal of 240646053 is 350646042.

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 not a de Polignac number, because 240646053 - 2¹⁸ = 240383909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 240646053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240646013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40107673 + ... + 40107678.

It is an arithmetic number, because the mean of its divisors is an integer number (80215352).

Almost surely, 2^240646053 is an apocalyptic number.

It is an amenable number.

240646053 is a deficient number, since it is larger than the sum of its proper divisors (80215355).

240646053 is an equidigital number, since it uses as much as digits as its factorization.

240646053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80215354.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 240646053 is about 15512.7706422805. The cubic root of 240646053 is about 622.0036229425.

The spelling of 240646053 in words is "two hundred forty million, six hundred forty-six thousand, fifty-three".