23440828445 has 4 divisors (see below), whose sum is σ = 28128994140. Its totient is φ = 18752662752.

The previous prime is 23440828429. The next prime is 23440828459. The reversal of 23440828445 is 54482804432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18570603076 + 4870225369 = 136274^2 + 69787^2 .

It is a cyclic number.

It is not a de Polignac number, because 23440828445 - 2⁴ = 23440828429 is a prime.

It is a super-2 number, since 2×23440828445² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23440828396 and 23440828405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2344082840 + ... + 2344082849.

It is an arithmetic number, because the mean of its divisors is an integer number (7032248535).

Almost surely, 2^23440828445 is an apocalyptic number.

It is an amenable number.

23440828445 is a deficient number, since it is larger than the sum of its proper divisors (4688165695).

23440828445 is an equidigital number, since it uses as much as digits as its factorization.

23440828445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4688165694.

The product of its (nonzero) digits is 983040, while the sum is 44.

The spelling of 23440828445 in words is "twenty-three billion, four hundred forty million, eight hundred twenty-eight thousand, four hundred forty-five".