38021573 has 4 divisors (see below), whose sum is σ = 38053740. Its totient is φ = 37989408.

The previous prime is 38021561. The next prime is 38021587. The reversal of 38021573 is 37512083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37512083 = 7 ⋅5358869.

It can be written as a sum of positive squares in 2 ways, for example, as 23406244 + 14615329 = 4838^2 + 3823^2 .

It is a cyclic number.

It is not a de Polignac number, because 38021573 - 2¹² = 38017477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38011573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14240 + ... + 16697.

It is an arithmetic number, because the mean of its divisors is an integer number (9513435).

Almost surely, 2^38021573 is an apocalyptic number.

It is an amenable number.

38021573 is a deficient number, since it is larger than the sum of its proper divisors (32167).

38021573 is a wasteful number, since it uses less digits than its factorization.

38021573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32166.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 38021573 is about 6166.1635560533. The cubic root of 38021573 is about 336.2611496052.

The spelling of 38021573 in words is "thirty-eight million, twenty-one thousand, five hundred seventy-three".