40251452 has 12 divisors (see below), whose sum is σ = 71634360. Its totient is φ = 19784496.

The previous prime is 40251451. The next prime is 40251467. The reversal of 40251452 is 25415204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40251451) 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 in 3 ways as a sum of consecutive naturals, for example, 85043 + ... + 85514.

It is an arithmetic number, because the mean of its divisors is an integer number (5969530).

Almost surely, 2^40251452 is an apocalyptic number.

It is an amenable number.

40251452 is a deficient number, since it is larger than the sum of its proper divisors (31382908).

40251452 is a wasteful number, since it uses less digits than its factorization.

40251452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170620 (or 170618 counting only the distinct ones).

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

The square root of 40251452 is about 6344.4032028237. The cubic root of 40251452 is about 342.7103210309.

Adding to 40251452 its reverse (25415204), we get a palindrome (65666656).

The spelling of 40251452 in words is "forty million, two hundred fifty-one thousand, four hundred fifty-two".