1601228 has 6 divisors (see below), whose sum is σ = 2802156. Its totient is φ = 800612.

The previous prime is 1601227. The next prime is 1601231. The reversal of 1601228 is 8221061.

It is a super-2 number, since 2×1601228² = 5127862215968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1601227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200150 + ... + 200157.

It is an arithmetic number, because the mean of its divisors is an integer number (467026).

2^1601228 is an apocalyptic number.

It is an amenable number.

1601228 is a deficient number, since it is larger than the sum of its proper divisors (1200928).

1601228 is a wasteful number, since it uses less digits than its factorization.

1601228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400311 (or 400309 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1601228 is about 1265.3963805859. The cubic root of 1601228 is about 116.9906243248.

Adding to 1601228 its reverse (8221061), we get a palindrome (9822289).

The spelling of 1601228 in words is "one million, six hundred one thousand, two hundred twenty-eight".