40400022224 has 20 divisors (see below), whose sum is σ = 78499337700. Its totient is φ = 20142128640.

The previous prime is 40400022217. The next prime is 40400022233. The reversal of 40400022224 is 42222000404.

It can be written as a sum of positive squares in 2 ways, for example, as 33390983824 + 7009038400 = 182732^2 + 83720^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40400022196 and 40400022205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3611897 + ... + 3623064.

It is an arithmetic number, because the mean of its divisors is an integer number (3924966885).

Almost surely, 2^40400022224 is an apocalyptic number.

It is an amenable number.

40400022224 is a deficient number, since it is larger than the sum of its proper divisors (38099315476).

40400022224 is a wasteful number, since it uses less digits than its factorization.

40400022224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7235318 (or 7235312 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40400022224 its reverse (42222000404), we get a palindrome (82622022628).

The spelling of 40400022224 in words is "forty billion, four hundred million, twenty-two thousand, two hundred twenty-four".