38428211 has 4 divisors (see below), whose sum is σ = 40688712. Its totient is φ = 36167712.

The previous prime is 38428183. The next prime is 38428223. The reversal of 38428211 is 11282483.

38428211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11282483 = 1559 ⋅7237.

It is a cyclic number.

It is not a de Polignac number, because 38428211 - 2¹⁴ = 38411827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38427211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1130225 + ... + 1130258.

It is an arithmetic number, because the mean of its divisors is an integer number (10172178).

Almost surely, 2^38428211 is an apocalyptic number.

38428211 is a deficient number, since it is larger than the sum of its proper divisors (2260501).

38428211 is a wasteful number, since it uses less digits than its factorization.

38428211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260500.

The product of its digits is 3072, while the sum is 29.

The square root of 38428211 is about 6199.0492012889. The cubic root of 38428211 is about 337.4556642264.

The spelling of 38428211 in words is "thirty-eight million, four hundred twenty-eight thousand, two hundred eleven".