244020520 has 32 divisors (see below), whose sum is σ = 562441320. Its totient is φ = 95226880.

The previous prime is 244020503. The next prime is 244020521. The reversal of 244020520 is 25020442.

244020520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 92582884 + 151437636 = 9622^2 + 12306^2 .

It is not an unprimeable number, because it can be changed into a prime (244020521) 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, 72757 + ... + 76036.

Almost surely, 2^244020520 is an apocalyptic number.

244020520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244020520 is an abundant number, since it is smaller than the sum of its proper divisors (318420800).

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

244020520 is a wasteful number, since it uses less digits than its factorization.

244020520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148845 (or 148841 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 244020520 is about 15621.1561671984. The cubic root of 244020520 is about 624.8974935888.

Adding to 244020520 its reverse (25020442), we get a palindrome (269040962).

The spelling of 244020520 in words is "two hundred forty-four million, twenty thousand, five hundred twenty".