240030444 has 12 divisors (see below), whose sum is σ = 560071064. Its totient is φ = 80010144.

The previous prime is 240030443. The next prime is 240030449. The reversal of 240030444 is 444030042.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×240030444² = 115229228093674272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 240030444.

It is not an unprimeable number, because it can be changed into a prime (240030443) 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, 10001257 + ... + 10001280.

Almost surely, 2^240030444 is an apocalyptic number.

It is an amenable number.

240030444 is an abundant number, since it is smaller than the sum of its proper divisors (320040620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240030444 is a wasteful number, since it uses less digits than its factorization.

240030444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20002544 (or 20002542 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 240030444 is about 15492.9159295466. The cubic root of 240030444 is about 621.4727769093.

Adding to 240030444 its reverse (444030042), we get a palindrome (684060486).

The spelling of 240030444 in words is "two hundred forty million, thirty thousand, four hundred forty-four".