38189453 has 4 divisors (see below), whose sum is σ = 39849888. Its totient is φ = 36529020.

The previous prime is 38189423. The next prime is 38189483. The reversal of 38189453 is 35498183.

38189453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35498183 = 7 ⋅5071169.

It is an interprime number because it is at equal distance from previous prime (38189423) and next prime (38189483).

It is a cyclic number.

It is not a de Polignac number, because 38189453 - 2⁸ = 38189197 is a prime.

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 38189453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38189423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830183 + ... + 830228.

It is an arithmetic number, because the mean of its divisors is an integer number (9962472).

Almost surely, 2^38189453 is an apocalyptic number.

It is an amenable number.

38189453 is a deficient number, since it is larger than the sum of its proper divisors (1660435).

38189453 is a wasteful number, since it uses less digits than its factorization.

38189453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660434.

The product of its digits is 103680, while the sum is 41.

The square root of 38189453 is about 6179.7615649797. The cubic root of 38189453 is about 336.7553308066.

The spelling of 38189453 in words is "thirty-eight million, one hundred eighty-nine thousand, four hundred fifty-three".