40455616 has 28 divisors (see below), whose sum is σ = 80485488. Its totient is φ = 20175872.

The previous prime is 40455601. The next prime is 40455641. The reversal of 40455616 is 61655404.

It is a super-3 number, since 3×40455616³ (a number of 24 digits) contains 333 as substring.

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, 40920 + ... + 41896.

Almost surely, 2^40455616 is an apocalyptic number.

It is an amenable number.

40455616 is a deficient number, since it is larger than the sum of its proper divisors (40029872).

40455616 is an equidigital number, since it uses as much as digits as its factorization.

40455616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636 (or 1626 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 40455616 is about 6360.4729383907. The cubic root of 40455616 is about 343.2887775362.

The spelling of 40455616 in words is "forty million, four hundred fifty-five thousand, six hundred sixteen".