3642404 has 12 divisors (see below), whose sum is σ = 6390300. Its totient is φ = 1816608.

The previous prime is 3642377. The next prime is 3642427. The reversal of 3642404 is 4042463.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3232804 + 409600 = 1798^2 + 640^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3642404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142 + ... + 2930.

It is an arithmetic number, because the mean of its divisors is an integer number (532525).

Almost surely, 2^3642404 is an apocalyptic number.

It is an amenable number.

3642404 is a deficient number, since it is larger than the sum of its proper divisors (2747896).

3642404 is a wasteful number, since it uses less digits than its factorization.

3642404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302 (or 2300 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 3642404 is about 1908.5083180327. The cubic root of 3642404 is about 153.8612907414.

Adding to 3642404 its reverse (4042463), we get a palindrome (7684867).

The spelling of 3642404 in words is "three million, six hundred forty-two thousand, four hundred four".