104320140 has 24 divisors (see below), whose sum is σ = 292096560. Its totient is φ = 27818688.

The previous prime is 104320123. The next prime is 104320141. The reversal of 104320140 is 41023401.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (104320141) 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, 869275 + ... + 869394.

It is an arithmetic number, because the mean of its divisors is an integer number (12170690).

Almost surely, 2^104320140 is an apocalyptic number.

104320140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104320140 is an abundant number, since it is smaller than the sum of its proper divisors (187776420).

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

104320140 is a wasteful number, since it uses less digits than its factorization.

104320140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738681 (or 1738679 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 104320140 is about 10213.7231213696. The cubic root of 104320140 is about 470.7489793452.

Adding to 104320140 its reverse (41023401), we get a palindrome (145343541).

The spelling of 104320140 in words is "one hundred four million, three hundred twenty thousand, one hundred forty".