38745520 has 40 divisors (see below), whose sum is σ = 98274960. Its totient is φ = 14088960.

The previous prime is 38745517. The next prime is 38745521. The reversal of 38745520 is 2554783.

It is a happy number.

38745520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (38745521) 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, 21135 + ... + 22894.

It is an arithmetic number, because the mean of its divisors is an integer number (2456874).

Almost surely, 2^38745520 is an apocalyptic number.

It is an amenable number.

38745520 is an abundant number, since it is smaller than the sum of its proper divisors (59529440).

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

38745520 is a wasteful number, since it uses less digits than its factorization.

38745520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44053 (or 44047 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 38745520 is about 6224.5899463338. The cubic root of 38745520 is about 338.3819311610.

The spelling of 38745520 in words is "thirty-eight million, seven hundred forty-five thousand, five hundred twenty".