3550404 has 48 divisors (see below), whose sum is σ = 9737280. Its totient is φ = 992640.

The previous prime is 3550387. The next prime is 3550411. The reversal of 3550404 is 4040553.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682 + ... + 2750.

It is an arithmetic number, because the mean of its divisors is an integer number (202860).

Almost surely, 2^3550404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3550404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4868640).

3550404 is an abundant number, since it is smaller than the sum of its proper divisors (6186876).

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

3550404 is a wasteful number, since it uses less digits than its factorization.

3550404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100 (or 2098 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 3550404 is about 1884.2515755599. The cubic root of 3550404 is about 152.5548168070.

Adding to 3550404 its reverse (4040553), we get a palindrome (7590957).

The spelling of 3550404 in words is "three million, five hundred fifty thousand, four hundred four".