40016453 has 8 divisors (see below), whose sum is σ = 42439320. Its totient is φ = 37601280.

The previous prime is 40016441. The next prime is 40016461. The reversal of 40016453 is 35461004.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19377604 + 20638849 = 4402^2 + 4543^2 .

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

It is not a de Polignac number, because 40016453 - 2¹⁰ = 40015429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40016153) 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 7 ways as a sum of consecutive naturals, for example, 11543 + ... + 14603.

It is an arithmetic number, because the mean of its divisors is an integer number (5304915).

Almost surely, 2^40016453 is an apocalyptic number.

It is an amenable number.

40016453 is a deficient number, since it is larger than the sum of its proper divisors (2422867).

40016453 is a wasteful number, since it uses less digits than its factorization.

40016453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3847.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40016453 is about 6325.8559104678. The cubic root of 40016453 is about 342.0420732982.

Adding to 40016453 its reverse (35461004), we get a palindrome (75477457).

The spelling of 40016453 in words is "forty million, sixteen thousand, four hundred fifty-three".