40213224 has 48 divisors (see below), whose sum is σ = 109468320. Its totient is φ = 13335840.

The previous prime is 40213219. The next prime is 40213249. The reversal of 40213224 is 42231204.

40213224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 40213197 and 40213206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13869 + ... + 16515.

It is an arithmetic number, because the mean of its divisors is an integer number (2280590).

Almost surely, 2^40213224 is an apocalyptic number.

It is an amenable number.

40213224 is an abundant number, since it is smaller than the sum of its proper divisors (69255096).

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

40213224 is a wasteful number, since it uses less digits than its factorization.

40213224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870 (or 2863 counting only the distinct ones).

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

The square root of 40213224 is about 6341.3897530431. The cubic root of 40213224 is about 342.6017926077.

Adding to 40213224 its reverse (42231204), we get a palindrome (82444428).

The spelling of 40213224 in words is "forty million, two hundred thirteen thousand, two hundred twenty-four".