254445444 has 72 divisors (see below), whose sum is σ = 703815840. Its totient is φ = 76867200.

The previous prime is 254445413. The next prime is 254445463. The reversal of 254445444 is 444544452.

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 = 254445399 and 254445408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161179 + ... + 162749.

It is an arithmetic number, because the mean of its divisors is an integer number (9775220).

Almost surely, 2^254445444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 254445444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351907920).

254445444 is an abundant number, since it is smaller than the sum of its proper divisors (449370396).

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

254445444 is a wasteful number, since it uses less digits than its factorization.

254445444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001 (or 1996 counting only the distinct ones).

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

The square root of 254445444 is about 15951.3461500903. The cubic root of 254445444 is about 633.6725479849.

Adding to 254445444 its reverse (444544452), we get a palindrome (698989896).

The spelling of 254445444 in words is "two hundred fifty-four million, four hundred forty-five thousand, four hundred forty-four".