40445507273 has 4 divisors (see below), whose sum is σ = 41750201088. Its totient is φ = 39140813460.

The previous prime is 40445507237. The next prime is 40445507281. The reversal of 40445507273 is 37270554404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40445507273 - 2¹⁴ = 40445490889 is a prime.

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 40445507273.

It is not an unprimeable number, because it can be changed into a prime (40445507293) 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, 652346861 + ... + 652346922.

It is an arithmetic number, because the mean of its divisors is an integer number (10437550272).

Almost surely, 2^40445507273 is an apocalyptic number.

It is an amenable number.

40445507273 is a deficient number, since it is larger than the sum of its proper divisors (1304693815).

40445507273 is a wasteful number, since it uses less digits than its factorization.

40445507273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304693814.

The product of its (nonzero) digits is 470400, while the sum is 41.

The spelling of 40445507273 in words is "forty billion, four hundred forty-five million, five hundred seven thousand, two hundred seventy-three".