381312948 has 12 divisors (see below), whose sum is σ = 889730240. Its totient is φ = 127104312.

The previous prime is 381312913. The next prime is 381312959. The reversal of 381312948 is 849213183.

381312948 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

381312948 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15888028 + ... + 15888051.

Almost surely, 2^381312948 is an apocalyptic number.

It is an amenable number.

381312948 is an abundant number, since it is smaller than the sum of its proper divisors (508417292).

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

381312948 is a wasteful number, since it uses less digits than its factorization.

381312948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31776086 (or 31776084 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 381312948 is about 19527.2360563394. The cubic root of 381312948 is about 725.1488861091.

It can be divided in two parts, 3813 and 12948, that added together give a palindrome (16761).

The spelling of 381312948 in words is "three hundred eighty-one million, three hundred twelve thousand, nine hundred forty-eight".