9143245440 has 512 divisors, whose sum is σ = 37278144000. Its totient is φ = 2074705920.

The previous prime is 9143245411. The next prime is 9143245457. The reversal of 9143245440 is 445423419.

9143245440 is a `hidden beast` number, since 91 + 4 + 3 + 24 + 544 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 9143245395 and 9143245404.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32538100 + ... + 32538380.

It is an arithmetic number, because the mean of its divisors is an integer number (72808875).

Almost surely, 2^9143245440 is an apocalyptic number.

9143245440 is a gapful number since it is divisible by the number (90) 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 9143245440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18639072000).

9143245440 is an abundant number, since it is smaller than the sum of its proper divisors (28134898560).

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

9143245440 is a wasteful number, since it uses less digits than its factorization.

9143245440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 9143245440 is about 95620.3191795551. The cubic root of 9143245440 is about 2091.0614359205.

Adding to 9143245440 its reverse (445423419), we get a palindrome (9588668859).

The spelling of 9143245440 in words is "nine billion, one hundred forty-three million, two hundred forty-five thousand, four hundred forty".