38272489 has 4 divisors (see below), whose sum is σ = 39592260. Its totient is φ = 36952720.

The previous prime is 38272469. The next prime is 38272499. The reversal of 38272489 is 98427283.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18318400 + 19954089 = 4280^2 + 4467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38272489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38272469) 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 3 ways as a sum of consecutive naturals, for example, 659842 + ... + 659899.

It is an arithmetic number, because the mean of its divisors is an integer number (9898065).

Almost surely, 2^38272489 is an apocalyptic number.

It is an amenable number.

38272489 is a deficient number, since it is larger than the sum of its proper divisors (1319771).

38272489 is a wasteful number, since it uses less digits than its factorization.

38272489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319770.

The product of its digits is 193536, while the sum is 43.

The square root of 38272489 is about 6186.4762991545. The cubic root of 38272489 is about 336.9992251389. Note that the first 3 decimals are identical.

The spelling of 38272489 in words is "thirty-eight million, two hundred seventy-two thousand, four hundred eighty-nine".