1996628 has 6 divisors (see below), whose sum is σ = 3494106. Its totient is φ = 998312.

The previous prime is 1996613. The next prime is 1996639. The reversal of 1996628 is 8266991.

It can be written as a sum of positive squares in only one way, i.e., 1882384 + 114244 = 1372^2 + 338^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249575 + ... + 249582.

It is an arithmetic number, because the mean of its divisors is an integer number (582351).

2^1996628 is an apocalyptic number.

It is an amenable number.

1996628 is a deficient number, since it is larger than the sum of its proper divisors (1497478).

1996628 is a wasteful number, since it uses less digits than its factorization.

1996628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499161 (or 499159 counting only the distinct ones).

The product of its digits is 46656, while the sum is 41.

The square root of 1996628 is about 1413.0208774112. The cubic root of 1996628 is about 125.9212575953.

The spelling of 1996628 in words is "one million, nine hundred ninety-six thousand, six hundred twenty-eight".