2352981 has 4 divisors (see below), whose sum is σ = 3137312. Its totient is φ = 1568652.

The previous prime is 2352971. The next prime is 2352989. The reversal of 2352981 is 1892532.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2352981 - 2¹³ = 2344789 is a prime.

It is a super-2 number, since 2×2352981² = 11073039172722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2352989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392161 + ... + 392166.

It is an arithmetic number, because the mean of its divisors is an integer number (784328).

2^2352981 is an apocalyptic number.

It is an amenable number.

2352981 is a deficient number, since it is larger than the sum of its proper divisors (784331).

2352981 is an equidigital number, since it uses as much as digits as its factorization.

2352981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784330.

The product of its digits is 4320, while the sum is 30.

The square root of 2352981 is about 1533.9429585223. The cubic root of 2352981 is about 133.0064820554.

It can be divided in two parts, 2352 and 981, that added together give a palindrome (3333).

The spelling of 2352981 in words is "two million, three hundred fifty-two thousand, nine hundred eighty-one".