381299090 has 16 divisors (see below), whose sum is σ = 686894040. Its totient is φ = 152396160.

The previous prime is 381299081. The next prime is 381299111. The reversal of 381299090 is 90992183.

It can be written as a sum of positive squares in 4 ways, for example, as 370678009 + 10621081 = 19253^2 + 3259^2 .

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, 1901 + ... + 27680.

Almost surely, 2^381299090 is an apocalyptic number.

381299090 is a deficient number, since it is larger than the sum of its proper divisors (305594950).

381299090 is a wasteful number, since it uses less digits than its factorization.

381299090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30877.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 381299090 is about 19526.8812153913. The cubic root of 381299090 is about 725.1401013432.

The spelling of 381299090 in words is "three hundred eighty-one million, two hundred ninety-nine thousand, ninety".