245044644 has 48 divisors (see below), whose sum is σ = 621445440. Its totient is φ = 74701440.

The previous prime is 245044633. The next prime is 245044663. The reversal of 245044644 is 446440542.

245044644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9799 + ... + 24209.

It is an arithmetic number, because the mean of its divisors is an integer number (12946780).

Almost surely, 2^245044644 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 245044644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310722720).

245044644 is an abundant number, since it is smaller than the sum of its proper divisors (376400796).

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

245044644 is a wasteful number, since it uses less digits than its factorization.

245044644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14540 (or 14538 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

The square root of 245044644 is about 15653.9018778067. The cubic root of 245044644 is about 625.7704793349.

The spelling of 245044644 in words is "two hundred forty-five million, forty-four thousand, six hundred forty-four".