38720835 has 32 divisors (see below), whose sum is σ = 69706560. Its totient is φ = 20645280.

The previous prime is 38720819. The next prime is 38720837. The reversal of 38720835 is 53802783.

38720835 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38720835 - 2⁴ = 38720819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38720835.

It is not an unprimeable number, because it can be changed into a prime (38720837) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 9165 + ... + 12705.

It is an arithmetic number, because the mean of its divisors is an integer number (2178330).

Almost surely, 2^38720835 is an apocalyptic number.

38720835 is a deficient number, since it is larger than the sum of its proper divisors (30985725).

38720835 is an frugal number, since it uses more digits than its factorization.

38720835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567 (or 3549 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 38720835 is about 6222.6067688711. The cubic root of 38720835 is about 338.3100541844.

The spelling of 38720835 in words is "thirty-eight million, seven hundred twenty thousand, eight hundred thirty-five".