381690952 has 8 divisors (see below), whose sum is σ = 715670550. Its totient is φ = 190845472.

The previous prime is 381690899. The next prime is 381690961. The reversal of 381690952 is 259096183.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 256832676 + 124858276 = 16026^2 + 11174^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 381690899 and 381690908.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23855677 + ... + 23855692.

Almost surely, 2^381690952 is an apocalyptic number.

It is an amenable number.

381690952 is a deficient number, since it is larger than the sum of its proper divisors (333979598).

381690952 is a wasteful number, since it uses less digits than its factorization.

381690952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47711375 (or 47711371 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 381690952 is about 19536.9125503494. The cubic root of 381690952 is about 725.3884257086.

The spelling of 381690952 in words is "three hundred eighty-one million, six hundred ninety thousand, nine hundred fifty-two".