40030545305 has 4 divisors (see below), whose sum is σ = 48036654372. Its totient is φ = 32024436240.

The previous prime is 40030545251. The next prime is 40030545307. The reversal of 40030545305 is 50354503004.

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 15663023104 + 24367522201 = 125152^2 + 156101^2 .

It is not a de Polignac number, because 40030545305 - 2³⁰ = 38956803481 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 (40030545307) 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, 4003054526 + ... + 4003054535.

It is an arithmetic number, because the mean of its divisors is an integer number (12009163593).

Almost surely, 2^40030545305 is an apocalyptic number.

It is an amenable number.

40030545305 is a deficient number, since it is larger than the sum of its proper divisors (8006109067).

40030545305 is an equidigital number, since it uses as much as digits as its factorization.

40030545305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8006109066.

The product of its (nonzero) digits is 18000, while the sum is 29.

The spelling of 40030545305 in words is "forty billion, thirty million, five hundred forty-five thousand, three hundred five".