104540140 has 24 divisors (see below), whose sum is σ = 232448832. Its totient is φ = 39356160.

The previous prime is 104540131. The next prime is 104540141. The reversal of 104540140 is 41045401.

It is not an unprimeable number, because it can be changed into a prime (104540141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153396 + ... + 154075.

It is an arithmetic number, because the mean of its divisors is an integer number (9685368).

Almost surely, 2^104540140 is an apocalyptic number.

104540140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104540140 is an abundant number, since it is smaller than the sum of its proper divisors (127908692).

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

104540140 is a wasteful number, since it uses less digits than its factorization.

104540140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307497 (or 307495 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 104540140 is about 10224.4872732084. The cubic root of 104540140 is about 471.0796667155.

Adding to 104540140 its reverse (41045401), we get a palindrome (145585541).

The spelling of 104540140 in words is "one hundred four million, five hundred forty thousand, one hundred forty".