38420825 has 12 divisors (see below), whose sum is σ = 47796048. Its totient is φ = 30637200.

The previous prime is 38420819. The next prime is 38420839. The reversal of 38420825 is 52802483.

It is a de Polignac number, because none of the positive numbers 2^k-38420825 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38420791 and 38420800.

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, 5954 + ... + 10596.

It is an arithmetic number, because the mean of its divisors is an integer number (3983004).

Almost surely, 2^38420825 is an apocalyptic number.

It is an amenable number.

38420825 is a deficient number, since it is larger than the sum of its proper divisors (9375223).

38420825 is a wasteful number, since it uses less digits than its factorization.

38420825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4984 (or 4979 counting only the distinct ones).

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

The square root of 38420825 is about 6198.4534361403. The cubic root of 38420825 is about 337.4340428951.

The spelling of 38420825 in words is "thirty-eight million, four hundred twenty thousand, eight hundred twenty-five".