381342492 has 30 divisors (see below), whose sum is σ = 996905448. Its totient is φ = 127114056.

The previous prime is 381342463. The next prime is 381342499. The reversal of 381342492 is 294243183.

381342492 is a `hidden beast` number, since 38 + 134 + 2 + 492 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381342499) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 588168 + ... + 588815.

Almost surely, 2^381342492 is an apocalyptic number.

It is an amenable number.

381342492 is an abundant number, since it is smaller than the sum of its proper divisors (615562956).

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

381342492 is a wasteful number, since it uses less digits than its factorization.

381342492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176999 (or 1176988 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 381342492 is about 19527.9925235545. The cubic root of 381342492 is about 725.1676137234.

The spelling of 381342492 in words is "three hundred eighty-one million, three hundred forty-two thousand, four hundred ninety-two".