244892778 has 16 divisors (see below), whose sum is σ = 527461536. Its totient is φ = 75351600.

The previous prime is 244892773. The next prime is 244892779. The reversal of 244892778 is 877298442.

It is a self number, because there is not a number n which added to its sum of digits gives 244892778.

It is not an unprimeable number, because it can be changed into a prime (244892773) 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 7 ways as a sum of consecutive naturals, for example, 1569748 + ... + 1569903.

It is an arithmetic number, because the mean of its divisors is an integer number (32966346).

Almost surely, 2^244892778 is an apocalyptic number.

244892778 is an abundant number, since it is smaller than the sum of its proper divisors (282568758).

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

244892778 is a wasteful number, since it uses less digits than its factorization.

244892778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139669.

The product of its digits is 1806336, while the sum is 51.

The square root of 244892778 is about 15649.0503865251. The cubic root of 244892778 is about 625.6411792245.

The spelling of 244892778 in words is "two hundred forty-four million, eight hundred ninety-two thousand, seven hundred seventy-eight".