381306297 has 16 divisors (see below), whose sum is σ = 528264000. Its totient is φ = 244353984.

The previous prime is 381306287. The next prime is 381306301. The reversal of 381306297 is 792603183.

It is not a de Polignac number, because 381306297 - 2¹⁹ = 380782009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381306217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10354 + ... + 29492.

It is an arithmetic number, because the mean of its divisors is an integer number (33016500).

Almost surely, 2^381306297 is an apocalyptic number.

It is an amenable number.

381306297 is a deficient number, since it is larger than the sum of its proper divisors (146957703).

381306297 is a wasteful number, since it uses less digits than its factorization.

381306297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19400.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 381306297 is about 19527.0657549976. The cubic root of 381306297 is about 725.1446699805.

The spelling of 381306297 in words is "three hundred eighty-one million, three hundred six thousand, two hundred ninety-seven".