4540140421532 has 24 divisors (see below), whose sum is σ = 8449637369040. Its totient is φ = 2128421767680.

The previous prime is 4540140421517. The next prime is 4540140421573. The reversal of 4540140421532 is 2351240410454.

It is a happy number.

It is a super-2 number, since 2×4540140421532² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4540140421492 and 4540140421501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307924019 + ... + 307938762.

It is an arithmetic number, because the mean of its divisors is an integer number (352068223710).

Almost surely, 2^{4540140421532} is an apocalyptic number.

It is an amenable number.

4540140421532 is a deficient number, since it is larger than the sum of its proper divisors (3909496947508).

4540140421532 is a wasteful number, since it uses less digits than its factorization.

4540140421532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615862901 (or 615862899 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 4540140421532 its reverse (2351240410454), we get a palindrome (6891380831986).

The spelling of 4540140421532 in words is "four trillion, five hundred forty billion, one hundred forty million, four hundred twenty-one thousand, five hundred thirty-two".