38281380 has 24 divisors (see below), whose sum is σ = 107188032. Its totient is φ = 10208352.

The previous prime is 38281379. The next prime is 38281393. The reversal of 38281380 is 8318283.

It is an unprimeable number.

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, 318952 + ... + 319071.

It is an arithmetic number, because the mean of its divisors is an integer number (4466168).

Almost surely, 2^38281380 is an apocalyptic number.

38281380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38281380 is an abundant number, since it is smaller than the sum of its proper divisors (68906652).

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

38281380 is a wasteful number, since it uses less digits than its factorization.

38281380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638035 (or 638033 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 38281380 is about 6187.1948409598. The cubic root of 38281380 is about 337.0253189746.

The spelling of 38281380 in words is "thirty-eight million, two hundred eighty-one thousand, three hundred eighty".