39221433 has 12 divisors (see below), whose sum is σ = 56968548. Its totient is φ = 26002080.

The previous prime is 39221423. The next prime is 39221447. The reversal of 39221433 is 33412293.

It is a happy number.

39221433 is a `hidden beast` number, since 3 + 9 + 221 + 433 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16867449 + 22353984 = 4107^2 + 4728^2 .

It is not a de Polignac number, because 39221433 - 2⁸ = 39221177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39221397 and 39221406.

It is not an unprimeable number, because it can be changed into a prime (39221423) 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, 10410 + ... + 13667.

It is an arithmetic number, because the mean of its divisors is an integer number (4747379).

Almost surely, 2^39221433 is an apocalyptic number.

It is an amenable number.

39221433 is a deficient number, since it is larger than the sum of its proper divisors (17747115).

39221433 is a wasteful number, since it uses less digits than its factorization.

39221433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24264 (or 24261 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 39221433 is about 6262.7017332777. The cubic root of 39221433 is about 339.7617506214.

The spelling of 39221433 in words is "thirty-nine million, two hundred twenty-one thousand, four hundred thirty-three".