40543454 has 16 divisors (see below), whose sum is σ = 73161600. Its totient is φ = 16461144.

The previous prime is 40543441. The next prime is 40543471. The reversal of 40543454 is 45434504.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75944 + ... + 76475.

It is an arithmetic number, because the mean of its divisors is an integer number (4572600).

Almost surely, 2^40543454 is an apocalyptic number.

40543454 is a deficient number, since it is larger than the sum of its proper divisors (32618146).

40543454 is a wasteful number, since it uses less digits than its factorization.

40543454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152447.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 40543454 is about 6367.3741840731. The cubic root of 40543454 is about 343.5370496379.

Adding to 40543454 its reverse (45434504), we get a palindrome (85977958).

The spelling of 40543454 in words is "forty million, five hundred forty-three thousand, four hundred fifty-four".