38998219 has 4 divisors (see below), whose sum is σ = 41998096. Its totient is φ = 35998344.

The previous prime is 38998213. The next prime is 38998231. The reversal of 38998219 is 91289983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91289983 = 17 ⋅5369999.

It is a cyclic number.

It is not a de Polignac number, because 38998219 - 2¹⁹ = 38473931 is a prime.

It is a super-2 number, since 2×38998219² = 3041722170343922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38998213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1499919 + ... + 1499944.

It is an arithmetic number, because the mean of its divisors is an integer number (10499524).

Almost surely, 2^38998219 is an apocalyptic number.

38998219 is a deficient number, since it is larger than the sum of its proper divisors (2999877).

38998219 is a wasteful number, since it uses less digits than its factorization.

38998219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999876.

The product of its digits is 279936, while the sum is 49.

The square root of 38998219 is about 6244.8554026494. The cubic root of 38998219 is about 339.1159820454.

The spelling of 38998219 in words is "thirty-eight million, nine hundred ninety-eight thousand, two hundred nineteen".