38099966 has 4 divisors (see below), whose sum is σ = 57149952. Its totient is φ = 19049982.

The previous prime is 38099933. The next prime is 38099989. The reversal of 38099966 is 66999083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66999083 = 1873 ⋅35771.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9524990 + ... + 9524993.

It is an arithmetic number, because the mean of its divisors is an integer number (14287488).

Almost surely, 2^38099966 is an apocalyptic number.

38099966 is a deficient number, since it is larger than the sum of its proper divisors (19049986).

38099966 is a wasteful number, since it uses less digits than its factorization.

38099966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19049985.

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 38099966 is about 6172.5169906611. The cubic root of 38099966 is about 336.4920923938.

The spelling of 38099966 in words is "thirty-eight million, ninety-nine thousand, nine hundred sixty-six".