4399605400 has 24 divisors (see below), whose sum is σ = 10229083020. Its totient is φ = 1759842080.

The previous prime is 4399605377. The next prime is 4399605403. The reversal of 4399605400 is 45069934.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4399605403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10998814 + ... + 10999213.

Almost surely, 2^4399605400 is an apocalyptic number.

4399605400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4399605400 is an abundant number, since it is smaller than the sum of its proper divisors (5829477620).

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

4399605400 is a wasteful number, since it uses less digits than its factorization.

4399605400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21998043 (or 21998034 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 4399605400 is about 66329.5213310031. The cubic root of 4399605400 is about 1638.5935542560.

The spelling of 4399605400 in words is "four billion, three hundred ninety-nine million, six hundred five thousand, four hundred".