1602404 has 6 divisors (see below), whose sum is σ = 2804214. Its totient is φ = 801200.

The previous prime is 1602401. The next prime is 1602407. The reversal of 1602404 is 4042061.

It is an interprime number because it is at equal distance from previous prime (1602401) and next prime (1602407).

It can be written as a sum of positive squares in only one way, i.e., 1098304 + 504100 = 1048^2 + 710^2 .

It is not an unprimeable number, because it can be changed into a prime (1602401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200297 + ... + 200304.

It is an arithmetic number, because the mean of its divisors is an integer number (467369).

2^1602404 is an apocalyptic number.

It is an amenable number.

1602404 is a deficient number, since it is larger than the sum of its proper divisors (1201810).

1602404 is a wasteful number, since it uses less digits than its factorization.

1602404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400605 (or 400603 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1602404 is about 1265.8609718291. The cubic root of 1602404 is about 117.0192580373.

Adding to 1602404 its reverse (4042061), we get a palindrome (5644465).

The spelling of 1602404 in words is "one million, six hundred two thousand, four hundred four".