381000232 has 8 divisors (see below), whose sum is σ = 714375450. Its totient is φ = 190500112.

The previous prime is 381000227. The next prime is 381000239. The reversal of 381000232 is 232000183.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 300467556 + 80532676 = 17334^2 + 8974^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×381000232² = 290322353568107648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (381000239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23812507 + ... + 23812522.

Almost surely, 2^381000232 is an apocalyptic number.

It is an amenable number.

381000232 is a deficient number, since it is larger than the sum of its proper divisors (333375218).

381000232 is a wasteful number, since it uses less digits than its factorization.

381000232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47625035 (or 47625031 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 381000232 is about 19519.2272388023. The cubic root of 381000232 is about 724.9505995670.

The spelling of 381000232 in words is "three hundred eighty-one million, two hundred thirty-two", and thus it is an aban number.