2158732 has 12 divisors (see below), whose sum is σ = 3870216. Its totient is φ = 1052960.

The previous prime is 2158727. The next prime is 2158733. The reversal of 2158732 is 2378512.

2158732 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2 + 1 + 5³ + 8⁷ + 7⁴ + 3¹⁰ + 2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2158732.

It is not an unprimeable number, because it can be changed into a prime (2158733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6418 + ... + 6745.

It is an arithmetic number, because the mean of its divisors is an integer number (322518).

2^2158732 is an apocalyptic number.

It is an amenable number.

2158732 is a deficient number, since it is larger than the sum of its proper divisors (1711484).

2158732 is a wasteful number, since it uses less digits than its factorization.

2158732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13208 (or 13206 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 2158732 is about 1469.2623999817. The cubic root of 2158732 is about 129.2407817915.

The spelling of 2158732 in words is "two million, one hundred fifty-eight thousand, seven hundred thirty-two".