4420540 has 24 divisors (see below), whose sum is σ = 9772560. Its totient is φ = 1675008.

The previous prime is 4420523. The next prime is 4420543. The reversal of 4420540 is 450244.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4420543) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5437 + ... + 6196.

It is an arithmetic number, because the mean of its divisors is an integer number (407190).

Almost surely, 2^4420540 is an apocalyptic number.

It is an amenable number.

4420540 is an abundant number, since it is smaller than the sum of its proper divisors (5352020).

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

4420540 is a wasteful number, since it uses less digits than its factorization.

4420540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11661 (or 11659 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 4420540 is about 2102.5080261440. The cubic root of 4420540 is about 164.1188410880.

Adding to 4420540 its reverse (450244), we get a palindrome (4870784).

The spelling of 4420540 in words is "four million, four hundred twenty thousand, five hundred forty".