330630261 has 16 divisors (see below), whose sum is σ = 487584384. Its totient is φ = 197964864.

The previous prime is 330630259. The next prime is 330630269. The reversal of 330630261 is 162036033.

It is not a de Polignac number, because 330630261 - 2¹ = 330630259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330630269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113121 + ... + 116006.

It is an arithmetic number, because the mean of its divisors is an integer number (30474024).

Almost surely, 2^330630261 is an apocalyptic number.

It is an amenable number.

330630261 is a deficient number, since it is larger than the sum of its proper divisors (156954123).

330630261 is a wasteful number, since it uses less digits than its factorization.

330630261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229180.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 330630261 is about 18183.2412127211. The cubic root of 330630261 is about 691.4819796118.

Adding to 330630261 its reverse (162036033), we get a palindrome (492666294).

It can be divided in two parts, 330630 and 261, that added together give a triangular number (330891 = T₈₁₃).

The spelling of 330630261 in words is "three hundred thirty million, six hundred thirty thousand, two hundred sixty-one".