4554440 has 48 divisors (see below), whose sum is σ = 11275740. Its totient is φ = 1654400.

The previous prime is 4554409. The next prime is 4554461. The reversal of 4554440 is 444554.

It can be written as a sum of positive squares in 2 ways, for example, as 4553956 + 484 = 2134^2 + 22^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4370 + ... + 5310.

Almost surely, 2^4554440 is an apocalyptic number.

4554440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4554440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5637870).

4554440 is an abundant number, since it is smaller than the sum of its proper divisors (6721300).

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

4554440 is a wasteful number, since it uses less digits than its factorization.

4554440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974 (or 959 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 4554440 is about 2134.1133990489. The cubic root of 4554440 is about 165.7594619485.

Adding to 4554440 its reverse (444554), we get a palindrome (4998994).

It can be divided in two parts, 4554 and 440, that added together give a palindrome (4994).

The spelling of 4554440 in words is "four million, five hundred fifty-four thousand, four hundred forty".