402104 has 8 divisors (see below), whose sum is σ = 753960. Its totient is φ = 201048.

The previous prime is 402091. The next prime is 402107. The reversal of 402104 is 401204.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402107) by changing a digit.

402104 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25124 + ... + 25139.

It is an arithmetic number, because the mean of its divisors is an integer number (94245).

2⁴⁰²¹⁰⁴ is an apocalyptic number.

It is an amenable number.

402104 is a deficient number, since it is larger than the sum of its proper divisors (351856).

402104 is a wasteful number, since it uses less digits than its factorization.

402104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50269 (or 50265 counting only the distinct ones).

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

The square root of 402104 is about 634.1167085009. The cubic root of 402104 is about 73.8095908296.

Adding to 402104 its reverse (401204), we get a palindrome (803308).

Subtracting from 402104 its reverse (401204), we obtain a square (900 = 30²).

The spelling of 402104 in words is "four hundred two thousand, one hundred four", and thus it is an iban number.