38543380 has 24 divisors (see below), whose sum is σ = 81137448. Its totient is φ = 15379968.

The previous prime is 38543363. The next prime is 38543387. The reversal of 38543380 is 8334583.

It can be written as a sum of positive squares in 4 ways, for example, as 17859076 + 20684304 = 4226^2 + 4548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38543387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7032 + ... + 11248.

It is an arithmetic number, because the mean of its divisors is an integer number (3380727).

Almost surely, 2^38543380 is an apocalyptic number.

It is an amenable number.

38543380 is an abundant number, since it is smaller than the sum of its proper divisors (42594068).

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

38543380 is a wasteful number, since it uses less digits than its factorization.

38543380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4683 (or 4681 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 38543380 is about 6208.3314988812. The cubic root of 38543380 is about 337.7924451958.

The spelling of 38543380 in words is "thirty-eight million, five hundred forty-three thousand, three hundred eighty".