4419540 has 72 divisors (see below), whose sum is σ = 13741728. Its totient is φ = 1149120.

The previous prime is 4419529. The next prime is 4419553. The reversal of 4419540 is 459144.

It is an Ulam number.

It is a congruent number.

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, 7455 + ... + 8025.

Almost surely, 2^4419540 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 4419540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6870864).

4419540 is an abundant number, since it is smaller than the sum of its proper divisors (9322188).

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

4419540 is a wasteful number, since it uses less digits than its factorization.

4419540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 4419540 is about 2102.2702014727. The cubic root of 4419540 is about 164.1064646801.

The spelling of 4419540 in words is "four million, four hundred nineteen thousand, five hundred forty".