40252224 has 28 divisors (see below), whose sum is σ = 106501184. Its totient is φ = 13417344.

The previous prime is 40252213. The next prime is 40252307. The reversal of 40252224 is 42225204.

It is a self number, because there is not a number n which added to its sum of digits gives 40252224.

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, 104632 + ... + 105015.

Almost surely, 2^40252224 is an apocalyptic number.

It is an amenable number.

40252224 is an abundant number, since it is smaller than the sum of its proper divisors (66248960).

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

40252224 is a wasteful number, since it uses less digits than its factorization.

40252224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209662 (or 209652 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 40252224 is about 6344.4640435580. The cubic root of 40252224 is about 342.7125120134.

Adding to 40252224 its reverse (42225204), we get a palindrome (82477428).

The spelling of 40252224 in words is "forty million, two hundred fifty-two thousand, two hundred twenty-four".