38730489 has 16 divisors (see below), whose sum is σ = 59900928. Its totient is φ = 21800592.

The previous prime is 38730481. The next prime is 38730499. The reversal of 38730489 is 98403783.

It is not a de Polignac number, because 38730489 - 2³ = 38730481 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38730489.

It is not an unprimeable number, because it can be changed into a prime (38730481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12357 + ... + 15170.

It is an arithmetic number, because the mean of its divisors is an integer number (3743808).

Almost surely, 2^38730489 is an apocalyptic number.

It is an amenable number.

38730489 is a deficient number, since it is larger than the sum of its proper divisors (21170439).

38730489 is a wasteful number, since it uses less digits than its factorization.

38730489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27604.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 38730489 is about 6223.3824404419. The cubic root of 38730489 is about 338.3381680226.

It can be divided in two parts, 387 and 30489, that added together give a triangular number (30876 = T₂₄₈).

The spelling of 38730489 in words is "thirty-eight million, seven hundred thirty thousand, four hundred eighty-nine".