8020045 has 8 divisors (see below), whose sum is σ = 10499040. Its totient is φ = 5832720.

The previous prime is 8020043. The next prime is 8020049. The reversal of 8020045 is 5400208.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8020045 - 2¹ = 8020043 is a prime.

It is a super-2 number, since 2×8020045² = 128642243604050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8020043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72855 + ... + 72964.

It is an arithmetic number, because the mean of its divisors is an integer number (1312380).

Almost surely, 2^8020045 is an apocalyptic number.

It is an amenable number.

8020045 is a deficient number, since it is larger than the sum of its proper divisors (2478995).

8020045 is a wasteful number, since it uses less digits than its factorization.

8020045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145835.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 8020045 is about 2831.9683967163. The cubic root of 8020045 is about 200.1669023460.

The spelling of 8020045 in words is "eight million, twenty thousand, forty-five".