2115824 has 20 divisors (see below), whose sum is σ = 4124736. Its totient is φ = 1051392.

The previous prime is 2115823. The next prime is 2115829. The reversal of 2115824 is 4285112.

It is a super-2 number, since 2×2115824² = 8953422397952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2115824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3272 + ... + 3864.

2^2115824 is an apocalyptic number.

It is an amenable number.

2115824 is a deficient number, since it is larger than the sum of its proper divisors (2008912).

2115824 is a wasteful number, since it uses less digits than its factorization.

2115824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824 (or 818 counting only the distinct ones).

The product of its digits is 640, while the sum is 23.

The square root of 2115824 is about 1454.5872266729. The cubic root of 2115824 is about 128.3787609270.

The spelling of 2115824 in words is "two million, one hundred fifteen thousand, eight hundred twenty-four".