38461409 has 4 divisors (see below), whose sum is σ = 43955904. Its totient is φ = 32966916.

The previous prime is 38461399. The next prime is 38461447. The reversal of 38461409 is 90416483.

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: 90416483 = 2389 ⋅37847.

It is a cyclic number.

It is not a de Polignac number, because 38461409 - 2⁸ = 38461153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38461499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2747237 + ... + 2747250.

It is an arithmetic number, because the mean of its divisors is an integer number (10988976).

Almost surely, 2^38461409 is an apocalyptic number.

It is an amenable number.

38461409 is a deficient number, since it is larger than the sum of its proper divisors (5494495).

38461409 is an equidigital number, since it uses as much as digits as its factorization.

38461409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5494494.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 38461409 is about 6201.7262919287. The cubic root of 38461409 is about 337.5528118545.

The spelling of 38461409 in words is "thirty-eight million, four hundred sixty-one thousand, four hundred nine".