40043454 has 32 divisors (see below), whose sum is σ = 87592320. Its totient is φ = 12103200.

The previous prime is 40043417. The next prime is 40043467. The reversal of 40043454 is 45434004.

40043454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 48364 + ... + 49184.

It is an arithmetic number, because the mean of its divisors is an integer number (2737260).

Almost surely, 2^40043454 is an apocalyptic number.

40043454 is an abundant number, since it is smaller than the sum of its proper divisors (47548866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40043454 is a wasteful number, since it uses less digits than its factorization.

40043454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 40043454 is about 6327.9897281838. The cubic root of 40043454 is about 342.1189866751.

Adding to 40043454 its reverse (45434004), we get a palindrome (85477458).

The spelling of 40043454 in words is "forty million, forty-three thousand, four hundred fifty-four".