38512340 has 24 divisors (see below), whose sum is σ = 81070080. Its totient is φ = 15367968.

The previous prime is 38512339. The next prime is 38512343. The reversal of 38512340 is 4321583.

38512340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38512343) 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, 7181 + ... + 11339.

It is an arithmetic number, because the mean of its divisors is an integer number (3377920).

Almost surely, 2^38512340 is an apocalyptic number.

It is an amenable number.

38512340 is an abundant number, since it is smaller than the sum of its proper divisors (42557740).

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

38512340 is a wasteful number, since it uses less digits than its factorization.

38512340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4631 (or 4629 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 38512340 is about 6205.8311288658. The cubic root of 38512340 is about 337.7017431228.

The spelling of 38512340 in words is "thirty-eight million, five hundred twelve thousand, three hundred forty".