23446023440 has 80 divisors (see below), whose sum is σ = 63320828160. Its totient is φ = 7906844160.

The previous prime is 23446023439. The next prime is 23446023499. The reversal of 23446023440 is 4432064432.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 23446023397 and 23446023406.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309020 + ... + 377339.

It is an arithmetic number, because the mean of its divisors is an integer number (791510352).

Almost surely, 2^23446023440 is an apocalyptic number.

23446023440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23446023440 is an abundant number, since it is smaller than the sum of its proper divisors (39874804720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23446023440 is a wasteful number, since it uses less digits than its factorization.

23446023440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686440 (or 686434 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 23446023440 its reverse (4432064432), we get a palindrome (27878087872).

The spelling of 23446023440 in words is "twenty-three billion, four hundred forty-six million, twenty-three thousand, four hundred forty".