244628645 has 8 divisors (see below), whose sum is σ = 301488504. Its totient is φ = 190413504.

The previous prime is 244628641. The next prime is 244628651. The reversal of 244628645 is 546826442.

It can be written as a sum of positive squares in 4 ways, for example, as 150577441 + 94051204 = 12271^2 + 9698^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 244628645 - 2² = 244628641 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244628641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660974 + ... + 661343.

It is an arithmetic number, because the mean of its divisors is an integer number (37686063).

Almost surely, 2^244628645 is an apocalyptic number.

It is an amenable number.

244628645 is a deficient number, since it is larger than the sum of its proper divisors (56859859).

244628645 is a wasteful number, since it uses less digits than its factorization.

244628645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322359.

The product of its digits is 368640, while the sum is 41.

The square root of 244628645 is about 15640.6088436480. The cubic root of 244628645 is about 625.4161665605.

The spelling of 244628645 in words is "two hundred forty-four million, six hundred twenty-eight thousand, six hundred forty-five".