40443455 has 16 divisors (see below), whose sum is σ = 52514784. Its totient is φ = 29723520.

The previous prime is 40443449. The next prime is 40443467. The reversal of 40443455 is 55434404.

It is not a de Polignac number, because 40443455 - 2⁸ = 40443199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13385 + ... + 16125.

It is an arithmetic number, because the mean of its divisors is an integer number (3282174).

Almost surely, 2^40443455 is an apocalyptic number.

40443455 is a deficient number, since it is larger than the sum of its proper divisors (12071329).

40443455 is a wasteful number, since it uses less digits than its factorization.

40443455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986.

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

The square root of 40443455 is about 6359.5168841666. The cubic root of 40443455 is about 343.2543764351.

Adding to 40443455 its reverse (55434404), we get a palindrome (95877859).

The spelling of 40443455 in words is "forty million, four hundred forty-three thousand, four hundred fifty-five".