38742225 has 12 divisors (see below), whose sum is σ = 64053936. Its totient is φ = 20662480.

The previous prime is 38742211. The next prime is 38742227. The reversal of 38742225 is 52224783.

It is not a de Polignac number, because 38742225 - 2¹⁶ = 38676689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38742227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258207 + ... + 258356.

It is an arithmetic number, because the mean of its divisors is an integer number (5337828).

Almost surely, 2^38742225 is an apocalyptic number.

It is an amenable number.

38742225 is a deficient number, since it is larger than the sum of its proper divisors (25311711).

38742225 is a wasteful number, since it uses less digits than its factorization.

38742225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516576 (or 516571 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 38742225 is about 6224.3252646371. The cubic root of 38742225 is about 338.3723386535.

The spelling of 38742225 in words is "thirty-eight million, seven hundred forty-two thousand, two hundred twenty-five".