39226745 has 4 divisors (see below), whose sum is σ = 47072100. Its totient is φ = 31381392.

The previous prime is 39226729. The next prime is 39226777. The reversal of 39226745 is 54762293.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12020089 + 27206656 = 3467^2 + 5216^2 .

It is a cyclic number.

It is not a de Polignac number, because 39226745 - 2⁴ = 39226729 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 39226699 and 39226708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3922670 + ... + 3922679.

It is an arithmetic number, because the mean of its divisors is an integer number (11768025).

Almost surely, 2^39226745 is an apocalyptic number.

It is an amenable number.

39226745 is a deficient number, since it is larger than the sum of its proper divisors (7845355).

39226745 is an equidigital number, since it uses as much as digits as its factorization.

39226745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7845354.

The product of its digits is 90720, while the sum is 38.

The square root of 39226745 is about 6263.1258170342. The cubic root of 39226745 is about 339.7770886038. Note that the first 3 decimals are identical.

The spelling of 39226745 in words is "thirty-nine million, two hundred twenty-six thousand, seven hundred forty-five".