2091632 has 20 divisors (see below), whose sum is σ = 4184256. Its totient is φ = 1011840.

The previous prime is 2091631. The next prime is 2091637. The reversal of 2091632 is 2361902.

2091632 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2091598 and 2091607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091631) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1613 + ... + 2604.

2^2091632 is an apocalyptic number.

It is an amenable number.

2091632 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2091632 is a wasteful number, since it uses less digits than its factorization.

2091632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4256 (or 4250 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2091632 is about 1446.2475583385. The cubic root of 2091632 is about 127.8875966342.

The spelling of 2091632 in words is "two million, ninety-one thousand, six hundred thirty-two".