104640534 has 24 divisors (see below), whose sum is σ = 227098872. Its totient is φ = 34822080.

The previous prime is 104640527. The next prime is 104640539. The reversal of 104640534 is 435046401.

104640534 is a `hidden beast` number, since 10 + 4 + 640 + 5 + 3 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 104640498 and 104640507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104640539) 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, 7054 + ... + 16094.

It is an arithmetic number, because the mean of its divisors is an integer number (9462453).

Almost surely, 2^104640534 is an apocalyptic number.

104640534 is an abundant number, since it is smaller than the sum of its proper divisors (122458338).

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

104640534 is a wasteful number, since it uses less digits than its factorization.

104640534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9692 (or 9689 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 104640534 is about 10229.3955833177. The cubic root of 104640534 is about 471.2304172337.

Adding to 104640534 its reverse (435046401), we get a palindrome (539686935).

The spelling of 104640534 in words is "one hundred four million, six hundred forty thousand, five hundred thirty-four".