4549440 has 112 divisors (see below), whose sum is σ = 16532352. Its totient is φ = 1038336.

The previous prime is 4549439. The next prime is 4549453. The reversal of 4549440 is 449454.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4549398 and 4549407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6382 + ... + 7058.

Almost surely, 2^4549440 is an apocalyptic number.

4549440 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 4549440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8266176).

4549440 is an abundant number, since it is smaller than the sum of its proper divisors (11982912).

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

4549440 is a wasteful number, since it uses less digits than its factorization.

4549440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 4549440 is about 2132.9416307063. The cubic root of 4549440 is about 165.6987811778.

The spelling of 4549440 in words is "four million, five hundred forty-nine thousand, four hundred forty".