23404442145 has 32 divisors (see below), whose sum is σ = 42809057280. Its totient is φ = 10696082880.

The previous prime is 23404442137. The next prime is 23404442207. The reversal of 23404442145 is 54124440432.

It is not a de Polignac number, because 23404442145 - 2³ = 23404442137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355096 + ... + 415814.

It is an arithmetic number, because the mean of its divisors is an integer number (1337783040).

Almost surely, 2^23404442145 is an apocalyptic number.

It is an amenable number.

23404442145 is a deficient number, since it is larger than the sum of its proper divisors (19404615135).

23404442145 is a wasteful number, since it uses less digits than its factorization.

23404442145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64405.

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 23404442145 its reverse (54124440432), we get a palindrome (77528882577).

The spelling of 23404442145 in words is "twenty-three billion, four hundred four million, four hundred forty-two thousand, one hundred forty-five".