245231244 has 72 divisors (see below), whose sum is σ = 652815072. Its totient is φ = 77468160.

The previous prime is 245231243. The next prime is 245231281. The reversal of 245231244 is 442132542.

It is not an unprimeable number, because it can be changed into a prime (245231243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92254 + ... + 94874.

It is an arithmetic number, because the mean of its divisors is an integer number (9066876).

Almost surely, 2^245231244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245231244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326407536).

245231244 is an abundant number, since it is smaller than the sum of its proper divisors (407583828).

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

245231244 is a wasteful number, since it uses less digits than its factorization.

245231244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767 (or 2762 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 245231244 is about 15659.8609189226. The cubic root of 245231244 is about 625.9292791662.

Adding to 245231244 its reverse (442132542), we get a palindrome (687363786).

It can be divided in two parts, 2452312 and 44, that added together give a square (2452356 = 1566²).

The spelling of 245231244 in words is "two hundred forty-five million, two hundred thirty-one thousand, two hundred forty-four".