38405228 has 12 divisors (see below), whose sum is σ = 67252920. Its totient is φ = 19190112.

The previous prime is 38405203. The next prime is 38405243. The reversal of 38405228 is 82250483.

It is a junction number, because it is equal to n+sod(n) for n = 38405194 and 38405203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9083 + ... + 12621.

It is an arithmetic number, because the mean of its divisors is an integer number (5604410).

Almost surely, 2^38405228 is an apocalyptic number.

It is an amenable number.

38405228 is a deficient number, since it is larger than the sum of its proper divisors (28847692).

38405228 is a wasteful number, since it uses less digits than its factorization.

38405228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6256 (or 6254 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 38405228 is about 6197.1951720113. The cubic root of 38405228 is about 337.3883760717.

The spelling of 38405228 in words is "thirty-eight million, four hundred five thousand, two hundred twenty-eight".