381030528 has 32 divisors (see below), whose sum is σ = 1012113360. Its totient is φ = 127010048.

The previous prime is 381030527. The next prime is 381030539. The reversal of 381030528 is 825030183.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 381030495 and 381030504.

It is not an unprimeable number, because it can be changed into a prime (381030527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495750 + ... + 496517.

Almost surely, 2^381030528 is an apocalyptic number.

It is an amenable number.

381030528 is an abundant number, since it is smaller than the sum of its proper divisors (631082832).

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

381030528 is an equidigital number, since it uses as much as digits as its factorization.

381030528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992284 (or 992272 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 381030528 is about 19520.0032786882. The cubic root of 381030528 is about 724.9698143596.

The spelling of 381030528 in words is "three hundred eighty-one million, thirty thousand, five hundred twenty-eight".