1628632 has 8 divisors (see below), whose sum is σ = 3053700. Its totient is φ = 814312.

The previous prime is 1628621. The next prime is 1628633. The reversal of 1628632 is 2368261.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1628632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628633) 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, 101782 + ... + 101797.

2^1628632 is an apocalyptic number.

It is an amenable number.

1628632 is a deficient number, since it is larger than the sum of its proper divisors (1425068).

1628632 is a wasteful number, since it uses less digits than its factorization.

1628632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203585 (or 203581 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 1628632 is about 1276.1786708765. The cubic root of 1628632 is about 117.6542594416.

The spelling of 1628632 in words is "one million, six hundred twenty-eight thousand, six hundred thirty-two".