381339372 has 24 divisors (see below), whose sum is σ = 898433536. Its totient is φ = 125878608.

The previous prime is 381339349. The next prime is 381339373. The reversal of 381339372 is 273933183.

381339372 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

381339372 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 381339372.

It is not an unprimeable number, because it can be changed into a prime (381339373) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 153028 + ... + 155499.

Almost surely, 2^381339372 is an apocalyptic number.

It is an amenable number.

381339372 is an abundant number, since it is smaller than the sum of its proper divisors (517094164).

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

381339372 is a wasteful number, since it uses less digits than its factorization.

381339372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308637 (or 308635 counting only the distinct ones).

The product of its digits is 81648, while the sum is 39.

The square root of 381339372 is about 19527.9126380676. The cubic root of 381339372 is about 725.1656360356.

The spelling of 381339372 in words is "three hundred eighty-one million, three hundred thirty-nine thousand, three hundred seventy-two".