38730019 has 8 divisors (see below), whose sum is σ = 39695040. Its totient is φ = 37775400.

The previous prime is 38730011. The next prime is 38730023. The reversal of 38730019 is 91003783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38730019 - 2³ = 38730011 is a prime.

It is a super-3 number, since 3×38730019³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38730011) 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, 5224 + ... + 10234.

It is an arithmetic number, because the mean of its divisors is an integer number (4961880).

Almost surely, 2^38730019 is an apocalyptic number.

38730019 is a deficient number, since it is larger than the sum of its proper divisors (965021).

38730019 is a wasteful number, since it uses less digits than its factorization.

38730019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5201.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 38730019 is about 6223.3446795112. The cubic root of 38730019 is about 338.3367994231.

The spelling of 38730019 in words is "thirty-eight million, seven hundred thirty thousand, nineteen".