4401620 has 24 divisors (see below), whose sum is σ = 9563400. Its totient is φ = 1699712.

The previous prime is 4401601. The next prime is 4401641. The reversal of 4401620 is 261044.

It can be written as a sum of positive squares in 4 ways, for example, as 16 + 4401604 = 4^2 + 2098^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3215 + ... + 4374.

It is an arithmetic number, because the mean of its divisors is an integer number (398475).

Almost surely, 2^4401620 is an apocalyptic number.

It is an amenable number.

4401620 is an abundant number, since it is smaller than the sum of its proper divisors (5161780).

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

4401620 is a wasteful number, since it uses less digits than its factorization.

4401620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7627 (or 7625 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4401620 is about 2098.0038131519. The cubic root of 4401620 is about 163.8843622655.

Adding to 4401620 its reverse (261044), we get a palindrome (4662664).

The spelling of 4401620 in words is "four million, four hundred one thousand, six hundred twenty".