489940722144 has 576 divisors, whose sum is σ = 1559003443200. Its totient is φ = 149516928000.

The previous prime is 489940722119. The next prime is 489940722197. The reversal of 489940722144 is 441227049984.

489940722144 is a `hidden beast` number, since 4 + 8 + 9 + 9 + 407 + 221 + 4 + 4 = 666.

It is a super-2 number, since 2×489940722144² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2139479022 + ... + 2139479250.

It is an arithmetic number, because the mean of its divisors is an integer number (2706603200).

Almost surely, 2^489940722144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489940722144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (779501721600).

489940722144 is an abundant number, since it is smaller than the sum of its proper divisors (1069062721056).

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

489940722144 is a wasteful number, since it uses less digits than its factorization.

489940722144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 489940722144 in words is "four hundred eighty-nine billion, nine hundred forty million, seven hundred twenty-two thousand, one hundred forty-four".