6244403400 has 240 divisors, whose sum is σ = 22632033600. Its totient is φ = 1592680320.

The previous prime is 6244403387. The next prime is 6244403411. The reversal of 6244403400 is 43044426.

6244403400 is a `hidden beast` number, since 624 + 4 + 4 + 0 + 34 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 364221 + ... + 380979.

It is an arithmetic number, because the mean of its divisors is an integer number (94300140).

Almost surely, 2^6244403400 is an apocalyptic number.

6244403400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6244403400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11316016800).

6244403400 is an abundant number, since it is smaller than the sum of its proper divisors (16387630200).

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

6244403400 is a wasteful number, since it uses less digits than its factorization.

6244403400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16810 (or 16792 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 6244403400 is about 79021.5375704624. The cubic root of 6244403400 is about 1841.4657704419.

Adding to 6244403400 its reverse (43044426), we get a palindrome (6287447826).

The spelling of 6244403400 in words is "six billion, two hundred forty-four million, four hundred three thousand, four hundred".