40160042452 has 12 divisors (see below), whose sum is σ = 70793068500. Its totient is φ = 19933451456.

The previous prime is 40160042431. The next prime is 40160042459. The reversal of 40160042452 is 25424006104.

It can be written as a sum of positive squares in 2 ways, for example, as 34690552516 + 5469489936 = 186254^2 + 73956^2 .

It is a super-2 number, since 2×40160042452² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40160042452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40160042459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36641827 + ... + 36642922.

It is an arithmetic number, because the mean of its divisors is an integer number (5899422375).

Almost surely, 2^40160042452 is an apocalyptic number.

It is an amenable number.

40160042452 is a deficient number, since it is larger than the sum of its proper divisors (30633026048).

40160042452 is a wasteful number, since it uses less digits than its factorization.

40160042452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73284890 (or 73284888 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 40160042452 its reverse (25424006104), we get a palindrome (65584048556).

The spelling of 40160042452 in words is "forty billion, one hundred sixty million, forty-two thousand, four hundred fifty-two".