104145408 has 120 divisors (see below), whose sum is σ = 304972668. Its totient is φ = 34209792.

The previous prime is 104145389. The next prime is 104145421. The reversal of 104145408 is 804541401.

It is a happy number.

104145408 is a `hidden beast` number, since 104 + 14 + 540 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 100641024 + 3504384 = 10032^2 + 1872^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 446860 + ... + 447092.

Almost surely, 2^104145408 is an apocalyptic number.

104145408 is a gapful number since it is divisible by the number (18) 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 104145408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152486334).

104145408 is an abundant number, since it is smaller than the sum of its proper divisors (200827260).

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

104145408 is an equidigital number, since it uses as much as digits as its factorization.

104145408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 104145408 is about 10205.1657507362. The cubic root of 104145408 is about 470.4860039888.

Adding to 104145408 its reverse (804541401), we get a palindrome (908686809).

The spelling of 104145408 in words is "one hundred four million, one hundred forty-five thousand, four hundred eight".