245643330 has 16 divisors (see below), whose sum is σ = 589544064. Its totient is φ = 65504880.

The previous prime is 245643317. The next prime is 245643331. The reversal of 245643330 is 33346542.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 8188111 = 245643330 / (2 + 4 + 5 + 6 + 4 + 3 + 3 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (245643331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4094026 + ... + 4094085.

It is an arithmetic number, because the mean of its divisors is an integer number (36846504).

Almost surely, 2^245643330 is an apocalyptic number.

245643330 is an abundant number, since it is smaller than the sum of its proper divisors (343900734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245643330 is a wasteful number, since it uses less digits than its factorization.

245643330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8188121.

The product of its (nonzero) digits is 25920, while the sum is 30.

The square root of 245643330 is about 15673.0127926956. The cubic root of 245643330 is about 626.2796863231.

Adding to 245643330 its reverse (33346542), we get a palindrome (278989872).

The spelling of 245643330 in words is "two hundred forty-five million, six hundred forty-three thousand, three hundred thirty".