104644620 has 72 divisors (see below), whose sum is σ = 322196784. Its totient is φ = 27485568.

The previous prime is 104644613. The next prime is 104644643. The reversal of 104644620 is 26446401.

104644620 is a `hidden beast` number, since 10 + 4 + 644 + 6 + 2 + 0 = 666.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7722 + ... + 16398.

Almost surely, 2^104644620 is an apocalyptic number.

104644620 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 104644620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161098392).

104644620 is an abundant number, since it is smaller than the sum of its proper divisors (217552164).

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

104644620 is a wasteful number, since it uses less digits than its factorization.

104644620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8759 (or 8754 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 104644620 is about 10229.5952999129. The cubic root of 104644620 is about 471.2365506836.

The spelling of 104644620 in words is "one hundred four million, six hundred forty-four thousand, six hundred twenty".