381523000 has 32 divisors (see below), whose sum is σ = 892766160. Its totient is φ = 152608800.

The previous prime is 381522989. The next prime is 381523001. The reversal of 381523000 is 325183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381523001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189762 + ... + 191761.

Almost surely, 2^381523000 is an apocalyptic number.

It is an amenable number.

381523000 is an abundant number, since it is smaller than the sum of its proper divisors (511243160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381523000 is a wasteful number, since it uses less digits than its factorization.

381523000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381544 (or 381530 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 381523000 is about 19532.6137523886. The cubic root of 381523000 is about 725.2820147410.

Adding to 381523000 its reverse (325183), we get a palindrome (381848183).

The spelling of 381523000 in words is "three hundred eighty-one million, five hundred twenty-three thousand".