381268242 has 16 divisors (see below), whose sum is σ = 847262880. Its totient is φ = 127089396.

The previous prime is 381268213. The next prime is 381268289. The reversal of 381268242 is 242862183.

It is a super-3 number, since 3×381268242³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 381268197 and 381268206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3530208 + ... + 3530315.

It is an arithmetic number, because the mean of its divisors is an integer number (52953930).

Almost surely, 2^381268242 is an apocalyptic number.

381268242 is an abundant number, since it is smaller than the sum of its proper divisors (465994638).

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

381268242 is a wasteful number, since it uses less digits than its factorization.

381268242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7060534 (or 7060528 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 381268242 is about 19526.0913139317. The cubic root of 381268242 is about 725.1205456316.

The spelling of 381268242 in words is "three hundred eighty-one million, two hundred sixty-eight thousand, two hundred forty-two".