38780019 has 8 divisors (see below), whose sum is σ = 57451920. Its totient is φ = 25853328.

The previous prime is 38780017. The next prime is 38780089. The reversal of 38780019 is 91008783.

It is not a de Polignac number, because 38780019 - 2¹ = 38780017 is a prime.

It is a super-2 number, since 2×38780019² = 3007779747280722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38780017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718122 + ... + 718175.

It is an arithmetic number, because the mean of its divisors is an integer number (7181490).

Almost surely, 2^38780019 is an apocalyptic number.

38780019 is a deficient number, since it is larger than the sum of its proper divisors (18671901).

38780019 is a wasteful number, since it uses less digits than its factorization.

38780019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436306 (or 1436300 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 38780019 is about 6227.3605163022. The cubic root of 38780019 is about 338.4823330927.

The spelling of 38780019 in words is "thirty-eight million, seven hundred eighty thousand, nineteen".