104212440 has 64 divisors (see below), whose sum is σ = 347378400. Its totient is φ = 27789696.

The previous prime is 104212429. The next prime is 104212441. The reversal of 104212440 is 44212401.

104212440 is a `hidden beast` number, since 1 + 0 + 421 + 244 + 0 = 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 (104212441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47167 + ... + 49326.

Almost surely, 2^104212440 is an apocalyptic number.

104212440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104212440 is an abundant number, since it is smaller than the sum of its proper divisors (243165960).

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

104212440 is a wasteful number, since it uses less digits than its factorization.

104212440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96513 (or 96503 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 104212440 is about 10208.4494415166. The cubic root of 104212440 is about 470.5869233174.

Adding to 104212440 its reverse (44212401), we get a palindrome (148424841).

The spelling of 104212440 in words is "one hundred four million, two hundred twelve thousand, four hundred forty".