5431441440 has 96 divisors (see below), whose sum is σ = 17120013120. Its totient is φ = 1447455744.

The previous prime is 5431441429. The next prime is 5431441447. The reversal of 5431441440 is 441441345.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×5431441440² = 59001112232298547200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 5431441398 and 5431441407.

It is not an unprimeable number, because it can be changed into a prime (5431441447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1086627 + ... + 1091613.

It is an arithmetic number, because the mean of its divisors is an integer number (178333470).

Almost surely, 2^5431441440 is an apocalyptic number.

It is an amenable number.

5431441440 is an abundant number, since it is smaller than the sum of its proper divisors (11688571680).

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

5431441440 is a wasteful number, since it uses less digits than its factorization.

5431441440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7274 (or 7266 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 5431441440 is about 73698.3136849141. The cubic root of 5431441440 is about 1757.8090678317.

Adding to 5431441440 its reverse (441441345), we get a palindrome (5872882785).

The spelling of 5431441440 in words is "five billion, four hundred thirty-one million, four hundred forty-one thousand, four hundred forty".