22031400024 has 96 divisors (see below), whose sum is σ = 61498008000. Its totient is φ = 7121488896.

The previous prime is 22031399941. The next prime is 22031400077. The reversal of 22031400024 is 42000413022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 338992 + ... + 398720.

It is an arithmetic number, because the mean of its divisors is an integer number (640604250).

Almost surely, 2^22031400024 is an apocalyptic number.

22031400024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22031400024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30749004000).

22031400024 is an abundant number, since it is smaller than the sum of its proper divisors (39466607976).

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

22031400024 is a wasteful number, since it uses less digits than its factorization.

22031400024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59897 (or 59890 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22031400024 its reverse (42000413022), we get a palindrome (64031813046).

The spelling of 22031400024 in words is "twenty-two billion, thirty-one million, four hundred thousand, twenty-four".