38073493 has 4 divisors (see below), whose sum is σ = 38091820. Its totient is φ = 38055168.

The previous prime is 38073463. The next prime is 38073499. The reversal of 38073493 is 39437083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39437083 = 7 ⋅5633869.

It can be written as a sum of positive squares in 2 ways, for example, as 17489124 + 20584369 = 4182^2 + 4537^2 .

It is a cyclic number.

It is not a de Polignac number, because 38073493 - 2²¹ = 35976341 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 (38073499) 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, 5580 + ... + 10357.

It is an arithmetic number, because the mean of its divisors is an integer number (9522955).

Almost surely, 2^38073493 is an apocalyptic number.

It is an amenable number.

38073493 is a deficient number, since it is larger than the sum of its proper divisors (18327).

38073493 is a wasteful number, since it uses less digits than its factorization.

38073493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18326.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 38073493 is about 6170.3721929880. The cubic root of 38073493 is about 336.4141394010.

The spelling of 38073493 in words is "thirty-eight million, seventy-three thousand, four hundred ninety-three".