40065452 has 48 divisors (see below), whose sum is σ = 85155840. Its totient is φ = 16111872.

The previous prime is 40065439. The next prime is 40065491. The reversal of 40065452 is 25456004.

40065452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67268 + ... + 67860.

It is an arithmetic number, because the mean of its divisors is an integer number (1774080).

Almost surely, 2^40065452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40065452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42577920).

40065452 is an abundant number, since it is smaller than the sum of its proper divisors (45090388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40065452 is a wasteful number, since it uses less digits than its factorization.

40065452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 40065452 is about 6329.7276402702. The cubic root of 40065452 is about 342.1816232611.

The spelling of 40065452 in words is "forty million, sixty-five thousand, four hundred fifty-two".