244646442 has 48 divisors (see below), whose sum is σ = 549934632. Its totient is φ = 78537600.

The previous prime is 244646419. The next prime is 244646443.

244646442 is a `hidden beast` number, since 2 + 4 + 4 + 6 + 4 + 644 + 2 = 666.

244646442 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 236575161 + 8071281 = 15381^2 + 2841^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 244646397 and 244646406.

It is not an unprimeable number, because it can be changed into a prime (244646443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65448 + ... + 69084.

Almost surely, 2^244646442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 244646442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274967316).

244646442 is an abundant number, since it is smaller than the sum of its proper divisors (305288190).

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

244646442 is a wasteful number, since it uses less digits than its factorization.

244646442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3783 (or 3780 counting only the distinct ones).

The product of its digits is 147456, while the sum is 36.

The square root of 244646442 is about 15641.1777689533. The cubic root of 244646442 is about 625.4313327615.

The spelling of 244646442 in words is "two hundred forty-four million, six hundred forty-six thousand, four hundred forty-two".