40130370073 has 4 divisors (see below), whose sum is σ = 40137597220. Its totient is φ = 40123142928.

The previous prime is 40130370053. The next prime is 40130370083. The reversal of 40130370073 is 37007303104.

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 28570464784 + 11559905289 = 169028^2 + 107517^2 .

It is a cyclic number.

It is not a de Polignac number, because 40130370073 - 2¹³ = 40130361881 is a prime.

It is a super-2 number, since 2×40130370073² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40130370053) 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, 3605238 + ... + 3616351.

It is an arithmetic number, because the mean of its divisors is an integer number (10034399305).

Almost surely, 2^40130370073 is an apocalyptic number.

It is an amenable number.

40130370073 is a deficient number, since it is larger than the sum of its proper divisors (7227147).

40130370073 is an equidigital number, since it uses as much as digits as its factorization.

40130370073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7227146.

The product of its (nonzero) digits is 5292, while the sum is 28.

Adding to 40130370073 its reverse (37007303104), we get a palindrome (77137673177).

The spelling of 40130370073 in words is "forty billion, one hundred thirty million, three hundred seventy thousand, seventy-three".