2161952 has 24 divisors (see below), whose sum is σ = 4584636. Its totient is φ = 997632.

The previous prime is 2161949. The next prime is 2161963. The reversal of 2161952 is 2591612.

It can be written as a sum of positive squares in 2 ways, for example, as 2062096 + 99856 = 1436^2 + 316^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2183 + ... + 3014.

2^2161952 is an apocalyptic number.

It is an amenable number.

2161952 is an abundant number, since it is smaller than the sum of its proper divisors (2422684).

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

2161952 is a wasteful number, since it uses less digits than its factorization.

2161952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220 (or 5212 counting only the distinct ones).

The product of its digits is 1080, while the sum is 26.

The square root of 2161952 is about 1470.3577795897. The cubic root of 2161952 is about 129.3050090901.

It can be divided in two parts, 2161 and 952, that added together give a palindrome (3113).

The spelling of 2161952 in words is "two million, one hundred sixty-one thousand, nine hundred fifty-two".