20440722467 has 8 divisors (see below), whose sum is σ = 22300004592. Its totient is φ = 18581612800.

The previous prime is 20440722439. The next prime is 20440722469. The reversal of 20440722467 is 76422704402.

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 20440722467 - 2¹² = 20440718371 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 20440722467.

It is not an unprimeable number, because it can be changed into a prime (20440722469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448367 + ... + 491847.

It is an arithmetic number, because the mean of its divisors is an integer number (2787500574).

Almost surely, 2^20440722467 is an apocalyptic number.

20440722467 is a deficient number, since it is larger than the sum of its proper divisors (1859282125).

20440722467 is a wasteful number, since it uses less digits than its factorization.

20440722467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86229.

The product of its (nonzero) digits is 150528, while the sum is 38.

The spelling of 20440722467 in words is "twenty billion, four hundred forty million, seven hundred twenty-two thousand, four hundred sixty-seven".