40212532 has 12 divisors (see below), whose sum is σ = 70424676. Its totient is φ = 20091200.

The previous prime is 40212521. The next prime is 40212547. The reversal of 40212532 is 23521204.

It can be written as a sum of positive squares in 2 ways, for example, as 31427236 + 8785296 = 5606^2 + 2964^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4032 + ... + 9832.

It is an arithmetic number, because the mean of its divisors is an integer number (5868723).

Almost surely, 2^40212532 is an apocalyptic number.

It is an amenable number.

40212532 is a deficient number, since it is larger than the sum of its proper divisors (30212144).

40212532 is a wasteful number, since it uses less digits than its factorization.

40212532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7538 (or 7536 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40212532 is about 6341.3351906361. The cubic root of 40212532 is about 342.5998274018.

Adding to 40212532 its reverse (23521204), we get a palindrome (63733736).

The spelling of 40212532 in words is "forty million, two hundred twelve thousand, five hundred thirty-two".