381206152 has 8 divisors (see below), whose sum is σ = 714761550. Its totient is φ = 190603072.

The previous prime is 381206129. The next prime is 381206167. The reversal of 381206152 is 251602183.

It can be written as a sum of positive squares in only one way, i.e., 313077636 + 68128516 = 17694^2 + 8254^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 381206152.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23825377 + ... + 23825392.

Almost surely, 2^381206152 is an apocalyptic number.

It is an amenable number.

381206152 is a deficient number, since it is larger than the sum of its proper divisors (333555398).

381206152 is a wasteful number, since it uses less digits than its factorization.

381206152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47650775 (or 47650771 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 381206152 is about 19524.5013252580. The cubic root of 381206152 is about 725.0811812384.

The spelling of 381206152 in words is "three hundred eighty-one million, two hundred six thousand, one hundred fifty-two".