38648040 has 32 divisors (see below), whose sum is σ = 115944480. Its totient is φ = 10306112.

The previous prime is 38648011. The next prime is 38648059. The reversal of 38648040 is 4084683.

38648040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 38647992 and 38648010.

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, 160914 + ... + 161153.

It is an arithmetic number, because the mean of its divisors is an integer number (3623265).

Almost surely, 2^38648040 is an apocalyptic number.

38648040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38648040 is an abundant number, since it is smaller than the sum of its proper divisors (77296440).

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

38648040 is a wasteful number, since it uses less digits than its factorization.

38648040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322081 (or 322077 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 38648040 is about 6216.7547804301. The cubic root of 38648040 is about 338.0979140485.

The spelling of 38648040 in words is "thirty-eight million, six hundred forty-eight thousand, forty".