40512452 has 12 divisors (see below), whose sum is σ = 71174460. Its totient is φ = 20176896.

The previous prime is 40512419. The next prime is 40512457. The reversal of 40512452 is 25421504.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 33362176 + 7150276 = 5776^2 + 2674^2 .

It is not an unprimeable number, because it can be changed into a prime (40512457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18677 + ... + 20732.

It is an arithmetic number, because the mean of its divisors is an integer number (5931205).

Almost surely, 2^40512452 is an apocalyptic number.

It is an amenable number.

40512452 is a deficient number, since it is larger than the sum of its proper divisors (30662008).

40512452 is a wasteful number, since it uses less digits than its factorization.

40512452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39670 (or 39668 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 40512452 is about 6364.9392770081. The cubic root of 40512452 is about 343.4494641763.

Adding to 40512452 its reverse (25421504), we get a palindrome (65933956).

The spelling of 40512452 in words is "forty million, five hundred twelve thousand, four hundred fifty-two".