381500326 has 16 divisors (see below), whose sum is σ = 587734560. Its totient is φ = 185613120.

The previous prime is 381500299. The next prime is 381500341. The reversal of 381500326 is 623005183.

It is a junction number, because it is equal to n+sod(n) for n = 381500294 and 381500303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26695 + ... + 38413.

It is an arithmetic number, because the mean of its divisors is an integer number (36733410).

Almost surely, 2^381500326 is an apocalyptic number.

381500326 is a deficient number, since it is larger than the sum of its proper divisors (206234234).

381500326 is a wasteful number, since it uses less digits than its factorization.

381500326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12159.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 381500326 is about 19532.0333298917. The cubic root of 381500326 is about 725.2676465639.

The spelling of 381500326 in words is "three hundred eighty-one million, five hundred thousand, three hundred twenty-six".