2091324 has 24 divisors (see below), whose sum is σ = 4961488. Its totient is φ = 685440.

The previous prime is 2091319. The next prime is 2091337. The reversal of 2091324 is 4231902.

It is a self number, because there is not a number n which added to its sum of digits gives 2091324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697 + ... + 2160.

2^2091324 is an apocalyptic number.

It is an amenable number.

2091324 is an abundant number, since it is smaller than the sum of its proper divisors (2870164).

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

2091324 is a wasteful number, since it uses less digits than its factorization.

2091324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2925 (or 2923 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2091324 is about 1446.1410719567. The cubic root of 2091324 is about 127.8813190301.

It can be divided in two parts, 2091 and 324, that added together give a triangular number (2415 = T₆₉).

The spelling of 2091324 in words is "two million, ninety-one thousand, three hundred twenty-four".