38920286 has 4 divisors (see below), whose sum is σ = 58380432. Its totient is φ = 19460142.

The previous prime is 38920253. The next prime is 38920307. The reversal of 38920286 is 68202983.

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: 68202983 = 29 ⋅2351827.

It is a Curzon number.

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, 9730070 + ... + 9730073.

It is an arithmetic number, because the mean of its divisors is an integer number (14595108).

Almost surely, 2^38920286 is an apocalyptic number.

38920286 is a deficient number, since it is larger than the sum of its proper divisors (19460146).

38920286 is a wasteful number, since it uses less digits than its factorization.

38920286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19460145.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 38920286 is about 6238.6125059984. The cubic root of 38920286 is about 338.8899379625.

The spelling of 38920286 in words is "thirty-eight million, nine hundred twenty thousand, two hundred eighty-six".