102204380 has 24 divisors (see below), whose sum is σ = 217572432. Its totient is φ = 40321152.

The previous prime is 102204379. The next prime is 102204407. The reversal of 102204380 is 83402201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33542 + ... + 36461.

It is an arithmetic number, because the mean of its divisors is an integer number (9065518).

Almost surely, 2^102204380 is an apocalyptic number.

102204380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102204380 is an abundant number, since it is smaller than the sum of its proper divisors (115368052).

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

102204380 is a wasteful number, since it uses less digits than its factorization.

102204380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70085 (or 70083 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 102204380 is about 10109.6181925926. The cubic root of 102204380 is about 467.5447334396.

Adding to 102204380 its reverse (83402201), we get a palindrome (185606581).

The spelling of 102204380 in words is "one hundred two million, two hundred four thousand, three hundred eighty".