40543252 has 6 divisors (see below), whose sum is σ = 70950698. Its totient is φ = 20271624.

The previous prime is 40543229. The next prime is 40543253. The reversal of 40543252 is 25234504.

It can be written as a sum of positive squares in only one way, i.e., 21846276 + 18696976 = 4674^2 + 4324^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40543253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5067903 + ... + 5067910.

Almost surely, 2^40543252 is an apocalyptic number.

It is an amenable number.

40543252 is a deficient number, since it is larger than the sum of its proper divisors (30407446).

40543252 is a wasteful number, since it uses less digits than its factorization.

40543252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10135817 (or 10135815 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 40543252 is about 6367.3583219417. The cubic root of 40543252 is about 343.5364791011.

Adding to 40543252 its reverse (25234504), we get a palindrome (65777756).

The spelling of 40543252 in words is "forty million, five hundred forty-three thousand, two hundred fifty-two".