22040021304 has 96 divisors (see below), whose sum is σ = 68241438720. Its totient is φ = 6295088448.

The previous prime is 22040021251. The next prime is 22040021323. The reversal of 22040021304 is 40312004022.

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, 2224249 + ... + 2234135.

It is an arithmetic number, because the mean of its divisors is an integer number (710848320).

Almost surely, 2^22040021304 is an apocalyptic number.

22040021304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22040021304 is an abundant number, since it is smaller than the sum of its proper divisors (46201417416).

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

22040021304 is a wasteful number, since it uses less digits than its factorization.

22040021304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14329 (or 14322 counting only the distinct ones).

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

Adding to 22040021304 its reverse (40312004022), we get a palindrome (62352025326).

The spelling of 22040021304 in words is "twenty-two billion, forty million, twenty-one thousand, three hundred four".