40445023205 has 16 divisors (see below), whose sum is σ = 49730672640. Its totient is φ = 31560314688.

The previous prime is 40445023183. The next prime is 40445023211. The reversal of 40445023205 is 50232054404.

It is a cyclic number.

It is not a de Polignac number, because 40445023205 - 2¹⁰ = 40445022181 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29276 + ... + 285914.

It is an arithmetic number, because the mean of its divisors is an integer number (3108167040).

Almost surely, 2^40445023205 is an apocalyptic number.

It is an amenable number.

40445023205 is a deficient number, since it is larger than the sum of its proper divisors (9285649435).

40445023205 is a wasteful number, since it uses less digits than its factorization.

40445023205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257420.

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 40445023205 its reverse (50232054404), we get a palindrome (90677077609).

The spelling of 40445023205 in words is "forty billion, four hundred forty-five million, twenty-three thousand, two hundred five".