38388806 has 4 divisors (see below), whose sum is σ = 57583212. Its totient is φ = 19194402.

The previous prime is 38388803. The next prime is 38388811. The reversal of 38388806 is 60888383.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60888383 = 23 ⋅2647321.

It is a super-2 number, since 2×38388806² = 2947400852211272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38388803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9597200 + ... + 9597203.

It is an arithmetic number, because the mean of its divisors is an integer number (14395803).

Almost surely, 2^38388806 is an apocalyptic number.

38388806 is a deficient number, since it is larger than the sum of its proper divisors (19194406).

38388806 is a wasteful number, since it uses less digits than its factorization.

38388806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19194405.

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 38388806 is about 6195.8700761071. The cubic root of 38388806 is about 337.3402803470.

The spelling of 38388806 in words is "thirty-eight million, three hundred eighty-eight thousand, eight hundred six".