2152730 has 8 divisors (see below), whose sum is σ = 3874932. Its totient is φ = 861088.

The previous prime is 2152729. The next prime is 2152739. The reversal of 2152730 is 372512.

It can be written as a sum of positive squares in 2 ways, for example, as 1819801 + 332929 = 1349^2 + 577^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2152739) 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, 107627 + ... + 107646.

2^2152730 is an apocalyptic number.

2152730 is a deficient number, since it is larger than the sum of its proper divisors (1722202).

2152730 is a wasteful number, since it uses less digits than its factorization.

2152730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215280.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2152730 is about 1467.2184568087. The cubic root of 2152730 is about 129.1208930189.

It can be divided in two parts, 2152 and 730, that added together give a palindrome (2882).

The spelling of 2152730 in words is "two million, one hundred fifty-two thousand, seven hundred thirty".