39830045 has 4 divisors (see below), whose sum is σ = 47796060. Its totient is φ = 31864032.

The previous prime is 39830029. The next prime is 39830047. The reversal of 39830045 is 54003893.

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 7873636 + 31956409 = 2806^2 + 5653^2 .

It is a cyclic number.

It is not a de Polignac number, because 39830045 - 2⁴ = 39830029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39829993 and 39830020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39830047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3983000 + ... + 3983009.

It is an arithmetic number, because the mean of its divisors is an integer number (11949015).

Almost surely, 2^39830045 is an apocalyptic number.

It is an amenable number.

39830045 is a deficient number, since it is larger than the sum of its proper divisors (7966015).

39830045 is an equidigital number, since it uses as much as digits as its factorization.

39830045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7966014.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 39830045 is about 6311.1048953412. The cubic root of 39830045 is about 341.5101367727.

The spelling of 39830045 in words is "thirty-nine million, eight hundred thirty thousand, forty-five".