38880019 has 4 divisors (see below), whose sum is σ = 39412696. Its totient is φ = 38347344.

The previous prime is 38879999. The next prime is 38880029. The reversal of 38880019 is 91008883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91008883 = 7 ⋅13001269.

It is a cyclic number.

It is not a de Polignac number, because 38880019 - 2⁷ = 38879891 is a prime.

It is a super-2 number, since 2×38880019² = 3023311754880722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38880019.

It is not an unprimeable number, because it can be changed into a prime (38880029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266229 + ... + 266374.

It is an arithmetic number, because the mean of its divisors is an integer number (9853174).

Almost surely, 2^38880019 is an apocalyptic number.

38880019 is a deficient number, since it is larger than the sum of its proper divisors (532677).

38880019 is an equidigital number, since it uses as much as digits as its factorization.

38880019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532676.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 38880019 is about 6235.3844308110. The cubic root of 38880019 is about 338.7730255814.

The spelling of 38880019 in words is "thirty-eight million, eight hundred eighty thousand, nineteen".