380389632 has 144 divisors (see below), whose sum is σ = 1166551680. Its totient is φ = 107790336.

The previous prime is 380389627. The next prime is 380389651. The reversal of 380389632 is 236983083.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 929844 + ... + 930252.

Almost surely, 2^380389632 is an apocalyptic number.

380389632 is a gapful number since it is divisible by the number (32) 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 380389632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583275840).

380389632 is an abundant number, since it is smaller than the sum of its proper divisors (786162048).

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

380389632 is a wasteful number, since it uses less digits than its factorization.

380389632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 380389632 is about 19503.5799790705. The cubic root of 380389632 is about 724.5631181612.

The spelling of 380389632 in words is "three hundred eighty million, three hundred eighty-nine thousand, six hundred thirty-two".