380949511 has 2 divisors, whose sum is σ = 380949512. Its totient is φ = 380949510.

The previous prime is 380949493. The next prime is 380949557. The reversal of 380949511 is 115949083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380949511 - 2¹⁵ = 380916743 is a prime.

It is a super-2 number, since 2×380949511² = 290245059862278242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380949011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190474755 + 190474756.

It is an arithmetic number, because the mean of its divisors is an integer number (190474756).

Almost surely, 2^380949511 is an apocalyptic number.

380949511 is a deficient number, since it is larger than the sum of its proper divisors (1).

380949511 is an equidigital number, since it uses as much as digits as its factorization.

380949511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 380949511 is about 19517.9279381803. The cubic root of 380949511 is about 724.9184282383.

The spelling of 380949511 in words is "three hundred eighty million, nine hundred forty-nine thousand, five hundred eleven".