104012280 has 144 divisors (see below), whose sum is σ = 348009480. Its totient is φ = 26937984.

The previous prime is 104012267. The next prime is 104012287. The reversal of 104012280 is 82210401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104012287) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1253119 + ... + 1253201.

Almost surely, 2^104012280 is an apocalyptic number.

104012280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104012280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174004740).

104012280 is an abundant number, since it is smaller than the sum of its proper divisors (243997200).

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

104012280 is a wasteful number, since it uses less digits than its factorization.

104012280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 104012280 is about 10198.6410859487. The cubic root of 104012280 is about 470.2854460400.

Adding to 104012280 its reverse (82210401), we get a palindrome (186222681).

The spelling of 104012280 in words is "one hundred four million, twelve thousand, two hundred eighty".