381497092 has 6 divisors (see below), whose sum is σ = 667619918. Its totient is φ = 190748544.

The previous prime is 381497069. The next prime is 381497093. The reversal of 381497092 is 290794183.

It can be written as a sum of positive squares in only one way, i.e., 360392256 + 21104836 = 18984^2 + 4594^2 .

It is not an unprimeable number, because it can be changed into a prime (381497093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47687133 + ... + 47687140.

Almost surely, 2^381497092 is an apocalyptic number.

It is an amenable number.

381497092 is a deficient number, since it is larger than the sum of its proper divisors (286122826).

381497092 is a wasteful number, since it uses less digits than its factorization.

381497092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95374277 (or 95374275 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 381497092 is about 19531.9505426365. The cubic root of 381497092 is about 725.2655971797.

The spelling of 381497092 in words is "three hundred eighty-one million, four hundred ninety-seven thousand, ninety-two".