102104420 has 48 divisors (see below), whose sum is σ = 234638208. Its totient is φ = 37013760.

The previous prime is 102104411. The next prime is 102104437. The reversal of 102104420 is 24401201.

It is a junction number, because it is equal to n+sod(n) for n = 102104395 and 102104404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106664 + ... + 107616.

It is an arithmetic number, because the mean of its divisors is an integer number (4888296).

Almost surely, 2^102104420 is an apocalyptic number.

102104420 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 102104420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117319104).

102104420 is an abundant number, since it is smaller than the sum of its proper divisors (132533788).

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

102104420 is a wasteful number, since it uses less digits than its factorization.

102104420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 102104420 is about 10104.6731763081. The cubic root of 102104420 is about 467.3922578596.

Adding to 102104420 its reverse (24401201), we get a palindrome (126505621).

The spelling of 102104420 in words is "one hundred two million, one hundred four thousand, four hundred twenty".