40223140 has 24 divisors (see below), whose sum is σ = 84756672. Its totient is φ = 16034400.

The previous prime is 40223123. The next prime is 40223143. The reversal of 40223140 is 4132204.

It is not an unprimeable number, because it can be changed into a prime (40223143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2865 + ... + 9415.

It is an arithmetic number, because the mean of its divisors is an integer number (3531528).

Almost surely, 2^40223140 is an apocalyptic number.

It is an amenable number.

40223140 is an abundant number, since it is smaller than the sum of its proper divisors (44533532).

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

40223140 is a wasteful number, since it uses less digits than its factorization.

40223140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6867 (or 6865 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40223140 is about 6342.1715523943. The cubic root of 40223140 is about 342.6299505107.

Adding to 40223140 its reverse (4132204), we get a palindrome (44355344).

The spelling of 40223140 in words is "forty million, two hundred twenty-three thousand, one hundred forty".