381539294 has 4 divisors (see below), whose sum is σ = 572308944. Its totient is φ = 190769646.

The previous prime is 381539287. The next prime is 381539299. The reversal of 381539294 is 492935183.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381539299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95384822 + ... + 95384825.

It is an arithmetic number, because the mean of its divisors is an integer number (143077236).

Almost surely, 2^381539294 is an apocalyptic number.

381539294 is a deficient number, since it is larger than the sum of its proper divisors (190769650).

381539294 is a wasteful number, since it uses less digits than its factorization.

381539294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190769649.

The product of its digits is 233280, while the sum is 44.

The square root of 381539294 is about 19533.0308452119. The cubic root of 381539294 is about 725.2923396554.

The spelling of 381539294 in words is "three hundred eighty-one million, five hundred thirty-nine thousand, two hundred ninety-four".