2430261 has 6 divisors (see below), whose sum is σ = 3510390. Its totient is φ = 1620168.

The previous prime is 2430257. The next prime is 2430289. The reversal of 2430261 is 1620342.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2160900 + 269361 = 1470^2 + 519^2 .

It is not a de Polignac number, because 2430261 - 2² = 2430257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2430251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135006 + ... + 135023.

It is an arithmetic number, because the mean of its divisors is an integer number (585065).

2^2430261 is an apocalyptic number.

It is an amenable number.

2430261 is a deficient number, since it is larger than the sum of its proper divisors (1080129).

2430261 is a wasteful number, since it uses less digits than its factorization.

2430261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270035 (or 270032 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2430261 is about 1558.9294403532. The cubic root of 2430261 is about 134.4469555850.

The spelling of 2430261 in words is "two million, four hundred thirty thousand, two hundred sixty-one".