40123200040 has 64 divisors (see below), whose sum is σ = 112553400960. Its totient is φ = 12505931520.

The previous prime is 40123199959. The next prime is 40123200041. The reversal of 40123200040 is 4000232104.

It is a junction number, because it is equal to n+sod(n) for n = 40123199987 and 40123200023.

It is not an unprimeable number, because it can be changed into a prime (40123200041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6510427 + ... + 6516586.

It is an arithmetic number, because the mean of its divisors is an integer number (1758646890).

Almost surely, 2^40123200040 is an apocalyptic number.

40123200040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40123200040 is an abundant number, since it is smaller than the sum of its proper divisors (72430200920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40123200040 is a wasteful number, since it uses less digits than its factorization.

40123200040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13027042 (or 13027038 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 40123200040 its reverse (4000232104), we get a palindrome (44123432144).

The spelling of 40123200040 in words is "forty billion, one hundred twenty-three million, two hundred thousand, forty".