3845280073 has 4 divisors (see below), whose sum is σ = 3874633488. Its totient is φ = 3815926660.

The previous prime is 3845280053. The next prime is 3845280077. The reversal of 3845280073 is 3700825483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3700825483 = 9901 ⋅373783.

It is a cyclic number.

It is not a de Polignac number, because 3845280073 - 2⁵ = 3845280041 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3845280077) 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, 14676511 + ... + 14676772.

It is an arithmetic number, because the mean of its divisors is an integer number (968658372).

Almost surely, 2^3845280073 is an apocalyptic number.

It is an amenable number.

3845280073 is a deficient number, since it is larger than the sum of its proper divisors (29353415).

3845280073 is a wasteful number, since it uses less digits than its factorization.

3845280073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29353414.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 3845280073 is about 62010.3223100800. The cubic root of 3845280073 is about 1566.6644634092.

The spelling of 3845280073 in words is "three billion, eight hundred forty-five million, two hundred eighty thousand, seventy-three".