40343423445 has 48 divisors (see below), whose sum is σ = 75565067760. Its totient is φ = 19793507328.

The previous prime is 40343423437. The next prime is 40343423453. The reversal of 40343423445 is 54432434304.

40343423445 is a `hidden beast` number, since 40 + 343 + 4 + 234 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (40343423437) and next prime (40343423453).

It can be written as a sum of positive squares in 8 ways, for example, as 5475704004 + 34867719441 = 73998^2 + 186729^2 .

It is not a de Polignac number, because 40343423445 - 2³ = 40343423437 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 53721 + ... + 289089.

It is an arithmetic number, because the mean of its divisors is an integer number (1574272245).

Almost surely, 2^40343423445 is an apocalyptic number.

40343423445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40343423445 is a deficient number, since it is larger than the sum of its proper divisors (35221644315).

40343423445 is a wasteful number, since it uses less digits than its factorization.

40343423445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235686 (or 235683 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 36.

Adding to 40343423445 its reverse (54432434304), we get a palindrome (94775857749).

The spelling of 40343423445 in words is "forty billion, three hundred forty-three million, four hundred twenty-three thousand, four hundred forty-five".