104504240 has 40 divisors (see below), whose sum is σ = 243482928. Its totient is φ = 41713920.

The previous prime is 104504227. The next prime is 104504251. The reversal of 104504240 is 42405401.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×104504240² = 21842272355955200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47975 + ... + 50105.

Almost surely, 2^104504240 is an apocalyptic number.

104504240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104504240 is an abundant number, since it is smaller than the sum of its proper divisors (138978688).

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

104504240 is a wasteful number, since it uses less digits than its factorization.

104504240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757 (or 2751 counting only the distinct ones).

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

The square root of 104504240 is about 10222.7315332058. The cubic root of 104504240 is about 471.0257362466.

Adding to 104504240 its reverse (42405401), we get a palindrome (146909641).

The spelling of 104504240 in words is "one hundred four million, five hundred four thousand, two hundred forty".