38454709 has 4 divisors (see below), whose sum is σ = 38467116. Its totient is φ = 38442304.

The previous prime is 38454707. The next prime is 38454719. The reversal of 38454709 is 90745483.

38454709 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 brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90745483 = 79 ⋅1148677.

It can be written as a sum of positive squares in 2 ways, for example, as 9132484 + 29322225 = 3022^2 + 5415^2 .

It is a cyclic number.

It is not a de Polignac number, because 38454709 - 2¹ = 38454707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38454707) 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, 2877 + ... + 9229.

It is an arithmetic number, because the mean of its divisors is an integer number (9616779).

Almost surely, 2^38454709 is an apocalyptic number.

It is an amenable number.

38454709 is a deficient number, since it is larger than the sum of its proper divisors (12407).

38454709 is an equidigital number, since it uses as much as digits as its factorization.

38454709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12406.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 38454709 is about 6201.1860962239. The cubic root of 38454709 is about 337.5332100836.

The spelling of 38454709 in words is "thirty-eight million, four hundred fifty-four thousand, seven hundred nine".