40001022623 has 8 divisors (see below), whose sum is σ = 40118569920. Its totient is φ = 39883642240.

The previous prime is 40001022619. The next prime is 40001022647. The reversal of 40001022623 is 32622010004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40001022623 - 2² = 40001022619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40001022595 and 40001022604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40001022653) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 446618 + ... + 528648.

It is an arithmetic number, because the mean of its divisors is an integer number (5014821240).

Almost surely, 2^40001022623 is an apocalyptic number.

40001022623 is a deficient number, since it is larger than the sum of its proper divisors (117547297).

40001022623 is an equidigital number, since it uses as much as digits as its factorization.

40001022623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83457.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40001022623 its reverse (32622010004), we get a palindrome (72623032627).

The spelling of 40001022623 in words is "forty billion, one million, twenty-two thousand, six hundred twenty-three".