102404 has 6 divisors (see below), whose sum is σ = 179214. Its totient is φ = 51200.

The previous prime is 102397. The next prime is 102407. The reversal of 102404 is 404201.

It can be written as a sum of positive squares in only one way, i.e., 102400 + 4 = 320^2 + 2^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12797 + ... + 12804.

It is an arithmetic number, because the mean of its divisors is an integer number (29869).

2¹⁰²⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

102404 is a deficient number, since it is larger than the sum of its proper divisors (76810).

102404 is a wasteful number, since it uses less digits than its factorization.

102404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25605 (or 25603 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 102404 is about 320.0062499390. The cubic root of 102404 is about 46.7848929738.

Adding to 102404 its reverse (404201), we get a palindrome (506605).

The spelling of 102404 in words is "one hundred two thousand, four hundred four", and thus it is an iban number.