1201628 has 24 divisors (see below), whose sum is σ = 2286144. Its totient is φ = 550400.

The previous prime is 1201601. The next prime is 1201633. The reversal of 1201628 is 8261021.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2573 + ... + 3003.

It is an arithmetic number, because the mean of its divisors is an integer number (95256).

2^1201628 is an apocalyptic number.

It is an amenable number.

1201628 is a deficient number, since it is larger than the sum of its proper divisors (1084516).

1201628 is a wasteful number, since it uses less digits than its factorization.

1201628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493 (or 491 counting only the distinct ones).

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

The square root of 1201628 is about 1096.1879400906. The cubic root of 1201628 is about 106.3138909847.

Adding to 1201628 its reverse (8261021), we get a palindrome (9462649).

The spelling of 1201628 in words is "one million, two hundred one thousand, six hundred twenty-eight".