240013444 has 24 divisors (see below), whose sum is σ = 468867168. Its totient is φ = 106559040.

The previous prime is 240013391. The next prime is 240013447. The reversal of 240013444 is 444310042.

It is a super-2 number, since 2×240013444² = 115212906601482272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (240013447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61537 + ... + 65320.

It is an arithmetic number, because the mean of its divisors is an integer number (19536132).

Almost surely, 2^240013444 is an apocalyptic number.

It is an amenable number.

240013444 is a deficient number, since it is larger than the sum of its proper divisors (228853724).

240013444 is a wasteful number, since it uses less digits than its factorization.

240013444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126915 (or 126913 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 240013444 is about 15492.3672819876. The cubic root of 240013444 is about 621.4581047613.

Adding to 240013444 its reverse (444310042), we get a palindrome (684323486).

The spelling of 240013444 in words is "two hundred forty million, thirteen thousand, four hundred forty-four".