40543456 has 24 divisors (see below), whose sum is σ = 79977240. Its totient is φ = 20231808.

The previous prime is 40543441. The next prime is 40543471. The reversal of 40543456 is 65434504.

It is an interprime number because it is at equal distance from previous prime (40543441) and next prime (40543471).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 21795 + ... + 23581.

It is an arithmetic number, because the mean of its divisors is an integer number (3332385).

Almost surely, 2^40543456 is an apocalyptic number.

It is an amenable number.

40543456 is a deficient number, since it is larger than the sum of its proper divisors (39433784).

40543456 is a wasteful number, since it uses less digits than its factorization.

40543456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506 (or 2498 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 40543456 is about 6367.3743411237. The cubic root of 40543456 is about 343.5370552868.

The spelling of 40543456 in words is "forty million, five hundred forty-three thousand, four hundred fifty-six".