381471530 has 16 divisors (see below), whose sum is σ = 749071584. Its totient is φ = 138716880.

The previous prime is 381471509. The next prime is 381471547. The reversal of 381471530 is 35174183.

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, 1733852 + ... + 1734071.

It is an arithmetic number, because the mean of its divisors is an integer number (46816974).

Almost surely, 2^381471530 is an apocalyptic number.

381471530 is a deficient number, since it is larger than the sum of its proper divisors (367600054).

381471530 is a wasteful number, since it uses less digits than its factorization.

381471530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3467941.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 381471530 is about 19531.2961679454. The cubic root of 381471530 is about 725.2493981455.

The spelling of 381471530 in words is "three hundred eighty-one million, four hundred seventy-one thousand, five hundred thirty".