2251330 has 8 divisors (see below), whose sum is σ = 4052412. Its totient is φ = 900528.

The previous prime is 2251297. The next prime is 2251331. The reversal of 2251330 is 331522.

It can be written as a sum of positive squares in 2 ways, for example, as 1814409 + 436921 = 1347^2 + 661^2 .

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 (2251331) 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, 112557 + ... + 112576.

2^2251330 is an apocalyptic number.

2251330 is a deficient number, since it is larger than the sum of its proper divisors (1801082).

2251330 is a wasteful number, since it uses less digits than its factorization.

2251330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225140.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 2251330 is about 1500.4432678379. The cubic root of 2251330 is about 131.0628837807.

Adding to 2251330 its reverse (331522), we get a palindrome (2582852).

The spelling of 2251330 in words is "two million, two hundred fifty-one thousand, three hundred thirty".