380143984 has 80 divisors (see below), whose sum is σ = 830196864. Its totient is φ = 167148800.

The previous prime is 380143913. The next prime is 380143991. The reversal of 380143984 is 489341083.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 773979 + ... + 774469.

Almost surely, 2^380143984 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 380143984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415098432).

380143984 is an abundant number, since it is smaller than the sum of its proper divisors (450052880).

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

380143984 is a wasteful number, since it uses less digits than its factorization.

380143984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 380143984 is about 19497.2814515255. The cubic root of 380143984 is about 724.4071151288.

The spelling of 380143984 in words is "three hundred eighty million, one hundred forty-three thousand, nine hundred eighty-four".