23402420444 has 24 divisors (see below), whose sum is σ = 44135479920. Its totient is φ = 10793545344.

The previous prime is 23402420417. The next prime is 23402420533. The reversal of 23402420444 is 44402420432.

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, 82514 + ... + 231545.

It is an arithmetic number, because the mean of its divisors is an integer number (1838978330).

Almost surely, 2^23402420444 is an apocalyptic number.

It is an amenable number.

23402420444 is a deficient number, since it is larger than the sum of its proper divisors (20733059476).

23402420444 is a wasteful number, since it uses less digits than its factorization.

23402420444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315509 (or 315507 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 23402420444 its reverse (44402420432), we get a palindrome (67804840876).

The spelling of 23402420444 in words is "twenty-three billion, four hundred two million, four hundred twenty thousand, four hundred forty-four".