3502404 has 36 divisors (see below), whose sum is σ = 8910720. Its totient is φ = 1159920.

The previous prime is 3502363. The next prime is 3502409. The reversal of 3502404 is 4042053.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3502409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9577 + ... + 9935.

It is an arithmetic number, because the mean of its divisors is an integer number (247520).

Almost surely, 2^3502404 is an apocalyptic number.

It is an amenable number.

3502404 is an abundant number, since it is smaller than the sum of its proper divisors (5408316).

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

3502404 is a wasteful number, since it uses less digits than its factorization.

3502404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 3502404 is about 1871.4710791247. The cubic root of 3502404 is about 151.8642023518.

Adding to 3502404 its reverse (4042053), we get a palindrome (7544457).

The spelling of 3502404 in words is "three million, five hundred two thousand, four hundred four".