39790745 has 8 divisors (see below), whose sum is σ = 48042816. Its totient is φ = 31636656.

The previous prime is 39790733. The next prime is 39790771. The reversal of 39790745 is 54709793.

It is a happy number.

39790745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 39790745 - 2²² = 35596441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39790696 and 39790705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23597 + ... + 25226.

It is an arithmetic number, because the mean of its divisors is an integer number (6005352).

Almost surely, 2^39790745 is an apocalyptic number.

It is an amenable number.

39790745 is a deficient number, since it is larger than the sum of its proper divisors (8252071).

39790745 is a wasteful number, since it uses less digits than its factorization.

39790745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48991.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 39790745 is about 6307.9905675262. The cubic root of 39790745 is about 341.3977779990.

The spelling of 39790745 in words is "thirty-nine million, seven hundred ninety thousand, seven hundred forty-five".