38419009 has 4 divisors (see below), whose sum is σ = 39356100. Its totient is φ = 37481920.

The previous prime is 38418977. The next prime is 38419019. The reversal of 38419009 is 90091483.

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 23232400 + 15186609 = 4820^2 + 3897^2 .

It is a cyclic number.

It is not a de Polignac number, because 38419009 - 2⁵ = 38418977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38419019) 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, 468484 + ... + 468565.

It is an arithmetic number, because the mean of its divisors is an integer number (9839025).

Almost surely, 2^38419009 is an apocalyptic number.

It is an amenable number.

38419009 is a deficient number, since it is larger than the sum of its proper divisors (937091).

38419009 is an equidigital number, since it uses as much as digits as its factorization.

38419009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937090.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 38419009 is about 6198.3069462556. The cubic root of 38419009 is about 337.4287264218.

The spelling of 38419009 in words is "thirty-eight million, four hundred nineteen thousand, nine".