38628311 has 8 divisors (see below), whose sum is σ = 41329200. Its totient is φ = 35994240.

The previous prime is 38628307. The next prime is 38628329. The reversal of 38628311 is 11382683.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38628311 - 2² = 38628307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38628341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15506 + ... + 17823.

It is an arithmetic number, because the mean of its divisors is an integer number (5166150).

Almost surely, 2^38628311 is an apocalyptic number.

38628311 is a deficient number, since it is larger than the sum of its proper divisors (2700889).

38628311 is a wasteful number, since it uses less digits than its factorization.

38628311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33409.

The product of its digits is 6912, while the sum is 32.

The square root of 38628311 is about 6215.1678175251. The cubic root of 38628311 is about 338.0403736654.

The spelling of 38628311 in words is "thirty-eight million, six hundred twenty-eight thousand, three hundred eleven".