104400252 has 90 divisors (see below), whose sum is σ = 300102264. Its totient is φ = 31624560.

The previous prime is 104400229. The next prime is 104400253. The reversal of 104400252 is 252004401.

104400252 is a `hidden beast` number, since 10 + 4 + 400 + 252 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104400253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 37873 + ... + 40535.

Almost surely, 2^104400252 is an apocalyptic number.

104400252 is a gapful number since it is divisible by the number (12) 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 104400252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150051132).

104400252 is an abundant number, since it is smaller than the sum of its proper divisors (195702012).

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

104400252 is a wasteful number, since it uses less digits than its factorization.

104400252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701 (or 2679 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 104400252 is about 10217.6441511730. The cubic root of 104400252 is about 470.8694514248.

Adding to 104400252 its reverse (252004401), we get a palindrome (356404653).

The spelling of 104400252 in words is "one hundred four million, four hundred thousand, two hundred fifty-two".