23214420440 has 16 divisors (see below), whose sum is σ = 52232446080. Its totient is φ = 9285768160.

The previous prime is 23214420413. The next prime is 23214420443. The reversal of 23214420440 is 4402441232.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23214420443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290180216 + ... + 290180295.

It is an arithmetic number, because the mean of its divisors is an integer number (3264527880).

Almost surely, 2^23214420440 is an apocalyptic number.

23214420440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23214420440 is an abundant number, since it is smaller than the sum of its proper divisors (29018025640).

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

23214420440 is a wasteful number, since it uses less digits than its factorization.

23214420440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580360522 (or 580360518 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 23214420440 its reverse (4402441232), we get a palindrome (27616861672).

The spelling of 23214420440 in words is "twenty-three billion, two hundred fourteen million, four hundred twenty thousand, four hundred forty".