387381434 has 8 divisors (see below), whose sum is σ = 633896928. Its totient is φ = 176082460.

The previous prime is 387381413. The next prime is 387381469. The reversal of 387381434 is 434183783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 387381391 and 387381400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8804102 + ... + 8804145.

It is an arithmetic number, because the mean of its divisors is an integer number (79237116).

Almost surely, 2^387381434 is an apocalyptic number.

387381434 is a deficient number, since it is larger than the sum of its proper divisors (246515494).

387381434 is a wasteful number, since it uses less digits than its factorization.

387381434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17608260.

The product of its digits is 193536, while the sum is 41.

The square root of 387381434 is about 19682.0078752144. The cubic root of 387381434 is about 728.9755028859.

The spelling of 387381434 in words is "three hundred eighty-seven million, three hundred eighty-one thousand, four hundred thirty-four".