38820225 has 12 divisors (see below), whose sum is σ = 64182896. Its totient is φ = 20704080.

The previous prime is 38820209. The next prime is 38820239. The reversal of 38820225 is 52202883.

It is not a de Polignac number, because 38820225 - 2⁴ = 38820209 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38820192 and 38820201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258727 + ... + 258876.

Almost surely, 2^38820225 is an apocalyptic number.

It is an amenable number.

38820225 is a deficient number, since it is larger than the sum of its proper divisors (25362671).

38820225 is a wasteful number, since it uses less digits than its factorization.

38820225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517616 (or 517611 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 38820225 is about 6230.5878534854. The cubic root of 38820225 is about 338.5992689152.

The spelling of 38820225 in words is "thirty-eight million, eight hundred twenty thousand, two hundred twenty-five".