38652281 has 4 divisors (see below), whose sum is σ = 38686032. Its totient is φ = 38618532.

The previous prime is 38652253. The next prime is 38652307. The reversal of 38652281 is 18225683.

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.

It is a cyclic number.

It is not a de Polignac number, because 38652281 - 2¹⁸ = 38390137 is a prime.

It is a super-2 number, since 2×38652281² = 2987997653005922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38652241) 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, 15095 + ... + 17468.

It is an arithmetic number, because the mean of its divisors is an integer number (9671508).

Almost surely, 2^38652281 is an apocalyptic number.

It is an amenable number.

38652281 is a deficient number, since it is larger than the sum of its proper divisors (33751).

38652281 is a wasteful number, since it uses less digits than its factorization.

38652281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33750.

The product of its digits is 23040, while the sum is 35.

The square root of 38652281 is about 6217.0958654343. The cubic root of 38652281 is about 338.1102805300.

The spelling of 38652281 in words is "thirty-eight million, six hundred fifty-two thousand, two hundred eighty-one".