245444442 has 32 divisors (see below), whose sum is σ = 496860480. Its totient is φ = 80826240.

The previous prime is 245444417. The next prime is 245444447. The reversal of 245444442 is 244444542.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (245444447) 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, 185142 + ... + 186462.

It is an arithmetic number, because the mean of its divisors is an integer number (15526890).

Almost surely, 2^245444442 is an apocalyptic number.

245444442 is an abundant number, since it is smaller than the sum of its proper divisors (251416038).

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

245444442 is a wasteful number, since it uses less digits than its factorization.

245444442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678.

The product of its digits is 81920, while the sum is 33.

The square root of 245444442 is about 15666.6665886525. Note that the first 3 decimals coincide. The cubic root of 245444442 is about 626.1106157898.

Adding to 245444442 its reverse (244444542), we get a palindrome (489888984).

The spelling of 245444442 in words is "two hundred forty-five million, four hundred forty-four thousand, four hundred forty-two".