438985036620 has 768 divisors, whose sum is σ = 1601398149120. Its totient is φ = 98968117248.

The previous prime is 438985036579. The next prime is 438985036627. The reversal of 438985036620 is 26630589834.

438985036620 is a `hidden beast` number, since 4 + 3 + 8 + 9 + 8 + 5 + 0 + 3 + 6 + 620 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (438985036627) by changing a digit.

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 255 ways as a sum of consecutive naturals, for example, 367966744 + ... + 367967936.

It is an arithmetic number, because the mean of its divisors is an integer number (2085153840).

Almost surely, 2^438985036620 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 438985036620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (800699074560).

438985036620 is an abundant number, since it is smaller than the sum of its proper divisors (1162413112500).

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

438985036620 is a wasteful number, since it uses less digits than its factorization.

438985036620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343 (or 1335 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 438985036620 in words is "four hundred thirty-eight billion, nine hundred eighty-five million, thirty-six thousand, six hundred twenty".