4000140073 has 4 divisors (see below), whose sum is σ = 4075614468. Its totient is φ = 3924665680.

The previous prime is 4000140037. The next prime is 4000140077. The reversal of 4000140073 is 3700410004.

It is a happy number.

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 3063290409 + 936849664 = 55347^2 + 30608^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4000140073 is a prime.

It is a super-2 number, since 2×4000140073² = 32002241207240890658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4000140073.

It is not an unprimeable number, because it can be changed into a prime (4000140077) 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, 37737118 + ... + 37737223.

It is an arithmetic number, because the mean of its divisors is an integer number (1018903617).

Almost surely, 2^4000140073 is an apocalyptic number.

It is an amenable number.

4000140073 is a deficient number, since it is larger than the sum of its proper divisors (75474395).

4000140073 is an equidigital number, since it uses as much as digits as its factorization.

4000140073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75474394.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 4000140073 is about 63246.6605679699. The cubic root of 4000140073 is about 1587.4195810875.

Adding to 4000140073 its reverse (3700410004), we get a palindrome (7700550077).

The spelling of 4000140073 in words is "four billion, one hundred forty thousand, seventy-three".