381299500 has 24 divisors (see below), whose sum is σ = 832759200. Its totient is φ = 152519600.

The previous prime is 381299441. The next prime is 381299509. The reversal of 381299500 is 5992183.

381299500 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

381299500 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 381299500.

It is not an unprimeable number, because it can be changed into a prime (381299509) 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, 380800 + ... + 381799.

It is an arithmetic number, because the mean of its divisors is an integer number (34698300).

Almost surely, 2^381299500 is an apocalyptic number.

It is an amenable number.

381299500 is an abundant number, since it is smaller than the sum of its proper divisors (451459700).

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

381299500 is a wasteful number, since it uses less digits than its factorization.

381299500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762618 (or 762606 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 381299500 is about 19526.8917137367. The cubic root of 381299500 is about 725.1403612505.

The spelling of 381299500 in words is "three hundred eighty-one million, two hundred ninety-nine thousand, five hundred".