4531092640 has 96 divisors (see below), whose sum is σ = 11308792320. Its totient is φ = 1710849024.

The previous prime is 4531092563. The next prime is 4531092647. The reversal of 4531092640 is 462901354.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4531092596 and 4531092605.

It is not an unprimeable number, because it can be changed into a prime (4531092647) 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, 888177 + ... + 893263.

It is an arithmetic number, because the mean of its divisors is an integer number (117799920).

Almost surely, 2^4531092640 is an apocalyptic number.

4531092640 is a gapful number since it is divisible by the number (40) 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 4531092640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5654396160).

4531092640 is an abundant number, since it is smaller than the sum of its proper divisors (6777699680).

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

4531092640 is a wasteful number, since it uses less digits than its factorization.

4531092640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5414 (or 5406 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 4531092640 is about 67313.3912382967. The cubic root of 4531092640 is about 1654.7573312444.

Adding to 4531092640 its reverse (462901354), we get a palindrome (4993993994).

The spelling of 4531092640 in words is "four billion, five hundred thirty-one million, ninety-two thousand, six hundred forty".