380332836840 has 256 divisors, whose sum is σ = 1252959840000. Its totient is φ = 91594137600.

The previous prime is 380332836811. The next prime is 380332836841. The reversal of 380332836840 is 48638233083.

It is a super-2 number, since 2×380332836840² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 380332836840.

It is not an unprimeable number, because it can be changed into a prime (380332836841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 138351786 + ... + 138354534.

It is an arithmetic number, because the mean of its divisors is an integer number (4894374375).

Almost surely, 2^380332836840 is an apocalyptic number.

380332836840 is a gapful number since it is divisible by the number (30) 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 380332836840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626479920000).

380332836840 is an abundant number, since it is smaller than the sum of its proper divisors (872627003160).

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

380332836840 is a wasteful number, since it uses less digits than its factorization.

380332836840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3428 (or 3424 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 380332836840 in words is "three hundred eighty billion, three hundred thirty-two million, eight hundred thirty-six thousand, eight hundred forty".