38281445 has 6 divisors (see below), whose sum is σ = 45954342. Its totient is φ = 30614088.

The previous prime is 38281429. The next prime is 38281457. The reversal of 38281445 is 54418283.

It can be written as a sum of positive squares in only one way, i.e., 30625156 + 7656289 = 5534^2 + 2767^2 .

It is not a de Polignac number, because 38281445 - 2⁴ = 38281429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12452 + ... + 15218.

It is an arithmetic number, because the mean of its divisors is an integer number (7659057).

Almost surely, 2^38281445 is an apocalyptic number.

It is an amenable number.

38281445 is a deficient number, since it is larger than the sum of its proper divisors (7672897).

38281445 is an frugal number, since it uses more digits than its factorization.

38281445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5539 (or 2772 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 38281445 is about 6187.2000937419. The cubic root of 38281445 is about 337.0255097256.

The spelling of 38281445 in words is "thirty-eight million, two hundred eighty-one thousand, four hundred forty-five".