104240540 has 12 divisors (see below), whose sum is σ = 218905176. Its totient is φ = 41696208.

The previous prime is 104240537. The next prime is 104240561. The reversal of 104240540 is 45042401.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5212027 = 104240540 / (1 + 0 + 4 + 2 + 4 + 0 + 5 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2605994 + ... + 2606033.

It is an arithmetic number, because the mean of its divisors is an integer number (18242098).

Almost surely, 2^104240540 is an apocalyptic number.

104240540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104240540 is an abundant number, since it is smaller than the sum of its proper divisors (114664636).

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

104240540 is a wasteful number, since it uses less digits than its factorization.

104240540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5212036 (or 5212034 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 104240540 is about 10209.8256596281. The cubic root of 104240540 is about 470.6292161064.

Adding to 104240540 its reverse (45042401), we get a palindrome (149282941).

The spelling of 104240540 in words is "one hundred four million, two hundred forty thousand, five hundred forty".