6243153440 has 96 divisors (see below), whose sum is σ = 15882168960. Its totient is φ = 2310467584.

The previous prime is 6243153409. The next prime is 6243153451. The reversal of 6243153440 is 443513426.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 6243153397 and 6243153406.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141029 + ... + 179931.

It is an arithmetic number, because the mean of its divisors is an integer number (165439260).

Almost surely, 2^6243153440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6243153440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7941084480).

6243153440 is an abundant number, since it is smaller than the sum of its proper divisors (9639015520).

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

6243153440 is a wasteful number, since it uses less digits than its factorization.

6243153440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38994 (or 38986 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 6243153440 is about 79013.6281915974. The cubic root of 6243153440 is about 1841.3428917612.

Adding to 6243153440 its reverse (443513426), we get a palindrome (6686666866).

The spelling of 6243153440 in words is "six billion, two hundred forty-three million, one hundred fifty-three thousand, four hundred forty".