104437728 has 48 divisors (see below), whose sum is σ = 304612560. Its totient is φ = 34812288.

The previous prime is 104437727. The next prime is 104437747. The reversal of 104437728 is 827734401.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 104437692 and 104437701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104437721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59575 + ... + 61302.

It is an arithmetic number, because the mean of its divisors is an integer number (6346095).

Almost surely, 2^104437728 is an apocalyptic number.

104437728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

104437728 is an abundant number, since it is smaller than the sum of its proper divisors (200174832).

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

104437728 is a wasteful number, since it uses less digits than its factorization.

104437728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120896 (or 120882 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 104437728 is about 10219.4778731597. The cubic root of 104437728 is about 470.9257865139.

The spelling of 104437728 in words is "one hundred four million, four hundred thirty-seven thousand, seven hundred twenty-eight".