380989752 has 128 divisors (see below), whose sum is σ = 1155409920. Its totient is φ = 103104000.

The previous prime is 380989747. The next prime is 380989781. The reversal of 380989752 is 257989083.

It is a super-2 number, since 2×380989752² = 290306382258043008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 380989695 and 380989704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104602 + ... + 108182.

It is an arithmetic number, because the mean of its divisors is an integer number (9026640).

Almost surely, 2^380989752 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 380989752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (577704960).

380989752 is an abundant number, since it is smaller than the sum of its proper divisors (774420168).

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

380989752 is a wasteful number, since it uses less digits than its factorization.

380989752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645 (or 3641 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The square root of 380989752 is about 19518.9587837057. The cubic root of 380989752 is about 724.9439525440.

The spelling of 380989752 in words is "three hundred eighty million, nine hundred eighty-nine thousand, seven hundred fifty-two".