4554444240 has 80 divisors (see below), whose sum is σ = 15687537600. Its totient is φ = 1214517888.

The previous prime is 4554444233. The next prime is 4554444241. The reversal of 4554444240 is 424444554.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4554444195 and 4554444204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4554444241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1052110 + ... + 1056429.

It is an arithmetic number, because the mean of its divisors is an integer number (196094220).

Almost surely, 2^4554444240 is an apocalyptic number.

4554444240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4554444240 is an abundant number, since it is smaller than the sum of its proper divisors (11133093360).

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

4554444240 is a wasteful number, since it uses less digits than its factorization.

4554444240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108561 (or 2108549 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 36.

The square root of 4554444240 is about 67486.6226744234. The cubic root of 4554444240 is about 1657.5951338693.

Adding to 4554444240 its reverse (424444554), we get a palindrome (4978888794).

It can be divided in two parts, 455444 and 4240, that added together give a square (459684 = 678²).

The spelling of 4554444240 in words is "four billion, five hundred fifty-four million, four hundred forty-four thousand, two hundred forty".