40905456 has 20 divisors (see below), whose sum is σ = 105672552. Its totient is φ = 13635136.

The previous prime is 40905439. The next prime is 40905479. The reversal of 40905456 is 65450904.

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, 426051 + ... + 426146.

Almost surely, 2^40905456 is an apocalyptic number.

It is an amenable number.

40905456 is an abundant number, since it is smaller than the sum of its proper divisors (64767096).

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

40905456 is a wasteful number, since it uses less digits than its factorization.

40905456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852208 (or 852202 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 40905456 is about 6395.7373304413. The cubic root of 40905456 is about 344.5564726898.

The spelling of 40905456 in words is "forty million, nine hundred five thousand, four hundred fifty-six".