2153724 has 24 divisors (see below), whose sum is σ = 5077968. Its totient is φ = 710400.

The previous prime is 2153717. The next prime is 2153729. The reversal of 2153724 is 4273512.

It is a junction number, because it is equal to n+sod(n) for n = 2153694 and 2153703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324 + ... + 2100.

It is an arithmetic number, because the mean of its divisors is an integer number (211582).

2^2153724 is an apocalyptic number.

It is an amenable number.

2153724 is an abundant number, since it is smaller than the sum of its proper divisors (2924244).

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

2153724 is a wasteful number, since it uses less digits than its factorization.

2153724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885 (or 1883 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 2153724 is about 1467.5571539126. The cubic root of 2153724 is about 129.1407633569.

The spelling of 2153724 in words is "two million, one hundred fifty-three thousand, seven hundred twenty-four".