4640544534 has 24 divisors (see below), whose sum is σ = 9795281400. Its totient is φ = 1465434432.

The previous prime is 4640544529. The next prime is 4640544539. The reversal of 4640544534 is 4354450464.

It is an interprime number because it is at equal distance from previous prime (4640544529) and next prime (4640544539).

It is a junction number, because it is equal to n+sod(n) for n = 4640544492 and 4640544501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640544539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1069059 + ... + 1073390.

It is an arithmetic number, because the mean of its divisors is an integer number (408136725).

Almost surely, 2^4640544534 is an apocalyptic number.

4640544534 is an abundant number, since it is smaller than the sum of its proper divisors (5154736866).

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

4640544534 is a wasteful number, since it uses less digits than its factorization.

4640544534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142492 (or 2142473 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 39.

The square root of 4640544534 is about 68121.5423636312. The cubic root of 4640544534 is about 1667.9754272096.

Adding to 4640544534 its reverse (4354450464), we get a palindrome (8994994998).

The spelling of 4640544534 in words is "four billion, six hundred forty million, five hundred forty-four thousand, five hundred thirty-four".