40872453 has 4 divisors (see below), whose sum is σ = 54496608. Its totient is φ = 27248300.

The previous prime is 40872451. The next prime is 40872511. The reversal of 40872453 is 35427804.

40872453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40872453 - 2¹ = 40872451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40872451) 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 3 ways as a sum of consecutive naturals, for example, 6812073 + ... + 6812078.

It is an arithmetic number, because the mean of its divisors is an integer number (13624152).

Almost surely, 2^40872453 is an apocalyptic number.

It is an amenable number.

40872453 is a deficient number, since it is larger than the sum of its proper divisors (13624155).

40872453 is a wasteful number, since it uses less digits than its factorization.

40872453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13624154.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 40872453 is about 6393.1567320065. The cubic root of 40872453 is about 344.4637836947.

The spelling of 40872453 in words is "forty million, eight hundred seventy-two thousand, four hundred fifty-three".