40040212453 has 8 divisors (see below), whose sum is σ = 40685149976. Its totient is φ = 39397881600.

The previous prime is 40040212439. The next prime is 40040212477. The reversal of 40040212453 is 35421204004.

It is a happy number.

40040212453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 340845444 + 39699367009 = 18462^2 + 199247^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40040212453 is a prime.

It is a super-2 number, since 2×40040212453² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040212493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620688 + ... + 682153.

It is an arithmetic number, because the mean of its divisors is an integer number (5085643747).

Almost surely, 2^40040212453 is an apocalyptic number.

It is an amenable number.

40040212453 is a deficient number, since it is larger than the sum of its proper divisors (644937523).

40040212453 is a wasteful number, since it uses less digits than its factorization.

40040212453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303335.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 40040212453 its reverse (35421204004), we get a palindrome (75461416457).

The spelling of 40040212453 in words is "forty billion, forty million, two hundred twelve thousand, four hundred fifty-three".