381972716 has 12 divisors (see below), whose sum is σ = 669572400. Its totient is φ = 190666320.

The previous prime is 381972697. The next prime is 381972761. The reversal of 381972716 is 617279183.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77315 + ... + 82106.

It is an arithmetic number, because the mean of its divisors is an integer number (55797700).

Almost surely, 2^381972716 is an apocalyptic number.

It is an amenable number.

381972716 is a deficient number, since it is larger than the sum of its proper divisors (287599684).

381972716 is a wasteful number, since it uses less digits than its factorization.

381972716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160024 (or 160022 counting only the distinct ones).

The product of its digits is 127008, while the sum is 44.

The square root of 381972716 is about 19544.1222877877. The cubic root of 381972716 is about 725.5668755521.

The spelling of 381972716 in words is "three hundred eighty-one million, nine hundred seventy-two thousand, seven hundred sixteen".