245420444 has 12 divisors (see below), whose sum is σ = 429828000. Its totient is φ = 122612448.

The previous prime is 245420431. The next prime is 245420447. The reversal of 245420444 is 444024542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245420447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18644 + ... + 28955.

It is an arithmetic number, because the mean of its divisors is an integer number (35819000).

Almost surely, 2^245420444 is an apocalyptic number.

It is an amenable number.

245420444 is a deficient number, since it is larger than the sum of its proper divisors (184407556).

245420444 is a wasteful number, since it uses less digits than its factorization.

245420444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48892 (or 48890 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

The square root of 245420444 is about 15665.9006763097. The cubic root of 245420444 is about 626.0902094171.

Adding to 245420444 its reverse (444024542), we get a palindrome (689444986).

The spelling of 245420444 in words is "two hundred forty-five million, four hundred twenty thousand, four hundred forty-four".