39250221 has 8 divisors (see below), whose sum is σ = 52367040. Its totient is φ = 26150112.

The previous prime is 39250201. The next prime is 39250231. The reversal of 39250221 is 12205293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39250221 - 2⁹ = 39249709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39250191 and 39250200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39250201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3136 + ... + 9398.

It is an arithmetic number, because the mean of its divisors is an integer number (6545880).

Almost surely, 2^39250221 is an apocalyptic number.

It is an amenable number.

39250221 is a deficient number, since it is larger than the sum of its proper divisors (13116819).

39250221 is a wasteful number, since it uses less digits than its factorization.

39250221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8355.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 39250221 is about 6264.9996807662. Note that the first 3 decimals coincide. The cubic root of 39250221 is about 339.8448571310.

The spelling of 39250221 in words is "thirty-nine million, two hundred fifty thousand, two hundred twenty-one".