244140625 has 13 divisors (see below), whose sum is σ = 305175781. Its totient is φ = 195312500.

The previous prime is 244140613. The next prime is 244140683. The reversal of 244140625 is 526041442.

The square root of 244140625 is 15625.

The cubic root of 244140625 is 625.

It is a perfect power (a square, a cube, a biquadrate, a 6-th power, a 12-th power), and thus also a powerful number.

It can be written as a sum of positive squares in 6 ways, for example, as 138133009 + 106007616 = 11753^2 + 10296^2 .

It is not a de Polignac number, because 244140625 - 2⁷ = 244140497 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 244140593 and 244140602.

It is an unprimeable number.

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 12 ways as a sum of consecutive naturals, for example, 48828123 + ... + 48828127.

Almost surely, 2^244140625 is an apocalyptic number.

244140625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

244140625 is the 15625-th square number.

244140625 is the 7813-rd centered octagonal number.

It is an amenable number.

244140625 is a deficient number, since it is larger than the sum of its proper divisors (61035156).

244140625 is an frugal number, since it uses more digits than its factorization.

244140625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 5 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The spelling of 244140625 in words is "two hundred forty-four million, one hundred forty thousand, six hundred twenty-five".