22740147445 has 8 divisors (see below), whose sum is σ = 27304305336. Its totient is φ = 18181365696.

The previous prime is 22740147439. The next prime is 22740147467. The reversal of 22740147445 is 54474104722.

It can be written as a sum of positive squares in 4 ways, for example, as 16695396 + 22723452049 = 4086^2 + 150743^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22740147445 is a prime.

It is a super-2 number, since 2×22740147445² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22740147398 and 22740147407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334722 + ... + 1351651.

It is an arithmetic number, because the mean of its divisors is an integer number (3413038167).

Almost surely, 2^22740147445 is an apocalyptic number.

It is an amenable number.

22740147445 is a deficient number, since it is larger than the sum of its proper divisors (4564157891).

22740147445 is a wasteful number, since it uses less digits than its factorization.

22740147445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688071.

The product of its (nonzero) digits is 250880, while the sum is 40.

The spelling of 22740147445 in words is "twenty-two billion, seven hundred forty million, one hundred forty-seven thousand, four hundred forty-five".