4030073 has 4 divisors (see below), whose sum is σ = 4044900. Its totient is φ = 4015248.

The previous prime is 4030069. The next prime is 4030121. The reversal of 4030073 is 3700304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2036329 + 1993744 = 1427^2 + 1412^2 .

It is a cyclic number.

It is not a de Polignac number, because 4030073 - 2² = 4030069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4030063) 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, 6998 + ... + 7551.

It is an arithmetic number, because the mean of its divisors is an integer number (1011225).

Almost surely, 2^4030073 is an apocalyptic number.

It is an amenable number.

4030073 is a deficient number, since it is larger than the sum of its proper divisors (14827).

4030073 is a wasteful number, since it uses less digits than its factorization.

4030073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14826.

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 4030073 is about 2007.5041718512. The cubic root of 4030073 is about 159.1369283123.

Adding to 4030073 its reverse (3700304), we get a palindrome (7730377).

It can be divided in two parts, 403007 and 3, that multiplied together give a palindrome (1209021).

The spelling of 4030073 in words is "four million, thirty thousand, seventy-three".