38500040 has 32 divisors (see below), whose sum is σ = 86806080. Its totient is φ = 15367872.

The previous prime is 38500039. The next prime is 38500043. The reversal of 38500040 is 4000583.

38500040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 38499985 and 38500021.

It is not an unprimeable number, because it can be changed into a prime (38500043) 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 7 ways as a sum of consecutive naturals, for example, 30869 + ... + 32091.

It is an arithmetic number, because the mean of its divisors is an integer number (2712690).

Almost surely, 2^38500040 is an apocalyptic number.

It is an amenable number.

38500040 is an abundant number, since it is smaller than the sum of its proper divisors (48306040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38500040 is a wasteful number, since it uses less digits than its factorization.

38500040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 38500040 is about 6204.8400462864. The cubic root of 38500040 is about 337.6657877751.

The spelling of 38500040 in words is "thirty-eight million, five hundred thousand, forty".