4020073 has 8 divisors (see below), whose sum is σ = 4110080. Its totient is φ = 3931200.

The previous prime is 4020031. The next prime is 4020119. The reversal of 4020073 is 3700204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4020073 is a prime.

It is an Ulam number.

It is a Duffinian number.

4020073 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4020773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11761 + ... + 12097.

It is an arithmetic number, because the mean of its divisors is an integer number (513760).

Almost surely, 2^4020073 is an apocalyptic number.

It is an amenable number.

4020073 is a deficient number, since it is larger than the sum of its proper divisors (90007).

4020073 is a wasteful number, since it uses less digits than its factorization.

4020073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 4020073 is about 2005.0119700391. The cubic root of 4020073 is about 159.0051947725.

Adding to 4020073 its reverse (3700204), we get a palindrome (7720277).

It can be divided in two parts, 402007 and 3, that multiplied together give a palindrome (1206021).

The spelling of 4020073 in words is "four million, twenty thousand, seventy-three".