3550442 has 12 divisors (see below), whose sum is σ = 6195330. Its totient is φ = 1521576.

The previous prime is 3550439. The next prime is 3550447. The reversal of 3550442 is 2440553.

It can be written as a sum of positive squares in only one way, i.e., 2989441 + 561001 = 1729^2 + 749^2 .

It is not an unprimeable number, because it can be changed into a prime (3550447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18017 + ... + 18212.

Almost surely, 2^3550442 is an apocalyptic number.

3550442 is a deficient number, since it is larger than the sum of its proper divisors (2644888).

3550442 is a wasteful number, since it uses less digits than its factorization.

3550442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36245 (or 36238 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 3550442 is about 1884.2616591121. The cubic root of 3550442 is about 152.5553610701. Note that the first 3 decimals are identical.

Adding to 3550442 its reverse (2440553), we get a palindrome (5990995).

The spelling of 3550442 in words is "three million, five hundred fifty thousand, four hundred forty-two".