4400100 has 54 divisors (see below), whose sum is σ = 13794690. Its totient is φ = 1173120.

The previous prime is 4400069. The next prime is 4400101. The reversal of 4400100 is 10044.

It can be written as a sum of positive squares in 3 ways, for example, as 527076 + 3873024 = 726^2 + 1968^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1545 + ... + 3344.

Almost surely, 2^4400100 is an apocalyptic number.

It is an amenable number.

4400100 is an abundant number, since it is smaller than the sum of its proper divisors (9394590).

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

4400100 is a wasteful number, since it uses less digits than its factorization.

4400100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4909 (or 4899 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 4400100 is about 2097.6415327696. The cubic root of 4400100 is about 163.8654955066.

Adding to 4400100 its reverse (10044), we get a palindrome (4410144).

The spelling of 4400100 in words is "four million, four hundred thousand, one hundred".