380913290 has 16 divisors (see below), whose sum is σ = 689127912. Its totient is φ = 151591104.

The previous prime is 380913257. The next prime is 380913317. The reversal of 380913290 is 92319083.

It is a Cunningham number, because it is equal to 19517²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 380913289 + 1 = 19517^2 + 1^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 380913290.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94709 + ... + 98648.

Almost surely, 2^380913290 is an apocalyptic number.

380913290 is a deficient number, since it is larger than the sum of its proper divisors (308214622).

380913290 is a wasteful number, since it uses less digits than its factorization.

380913290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193561.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 380913290 is about 19517.0000256187. Note that the first 4 decimals coincide. The cubic root of 380913290 is about 724.8954522254.

The spelling of 380913290 in words is "three hundred eighty million, nine hundred thirteen thousand, two hundred ninety".