381332480 has 88 divisors (see below), whose sum is σ = 928519200. Its totient is φ = 150241280.

The previous prime is 381332473. The next prime is 381332537. The reversal of 381332480 is 84233183.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362996 + ... + 364044.

Almost surely, 2^381332480 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 381332480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464259600).

381332480 is an abundant number, since it is smaller than the sum of its proper divisors (547186720).

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

381332480 is a wasteful number, since it uses less digits than its factorization.

381332480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 381332480 is about 19527.7361719171. The cubic root of 381332480 is about 725.1612673359.

The spelling of 381332480 in words is "three hundred eighty-one million, three hundred thirty-two thousand, four hundred eighty".