40545152 has 16 divisors (see below), whose sum is σ = 80773800. Its totient is φ = 20272512.

The previous prime is 40545143. The next prime is 40545157. The reversal of 40545152 is 25154504.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40545157) by changing a digit.

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 as a sum of consecutive naturals, namely, 158252 + ... + 158507.

Almost surely, 2^40545152 is an apocalyptic number.

It is an amenable number.

40545152 is a deficient number, since it is larger than the sum of its proper divisors (40228648).

40545152 is an equidigital number, since it uses as much as digits as its factorization.

40545152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316773 (or 316761 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 40545152 is about 6367.5075186450. The cubic root of 40545152 is about 343.5418454615.

Adding to 40545152 its reverse (25154504), we get a palindrome (65699656).

The spelling of 40545152 in words is "forty million, five hundred forty-five thousand, one hundred fifty-two".