244402920 has 160 divisors (see below), whose sum is σ = 827509320. Its totient is φ = 64696320.

The previous prime is 244402913. The next prime is 244402933. The reversal of 244402920 is 29204442.

It can be written as a sum of positive squares in 4 ways, for example, as 146748996 + 97653924 = 12114^2 + 9882^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 780684 + ... + 780996.

Almost surely, 2^244402920 is an apocalyptic number.

244402920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 244402920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413754660).

244402920 is an abundant number, since it is smaller than the sum of its proper divisors (583106400).

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

244402920 is a wasteful number, since it uses less digits than its factorization.

244402920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 244402920 is about 15633.3911868155. The cubic root of 244402920 is about 625.2237449582.

The spelling of 244402920 in words is "two hundred forty-four million, four hundred two thousand, nine hundred twenty".