40071852 has 72 divisors (see below), whose sum is σ = 105945840. Its totient is φ = 12754560.

The previous prime is 40071847. The next prime is 40071859. The reversal of 40071852 is 25817004.

40071852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40071859) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 136618 + ... + 136910.

It is an arithmetic number, because the mean of its divisors is an integer number (1471470).

Almost surely, 2^40071852 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 40071852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52972920).

40071852 is an abundant number, since it is smaller than the sum of its proper divisors (65873988).

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

40071852 is a wasteful number, since it uses less digits than its factorization.

40071852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 40071852 is about 6330.2331710609. The cubic root of 40071852 is about 342.1998421645.

Adding to 40071852 its reverse (25817004), we get a palindrome (65888856).

The spelling of 40071852 in words is "forty million, seventy-one thousand, eight hundred fifty-two".