40455779 has 8 divisors (see below), whose sum is σ = 49791840. Its totient is φ = 32008896.

The previous prime is 40455773. The next prime is 40455791. The reversal of 40455779 is 97755404.

40455779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40455779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40455773) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 222194 + ... + 222375.

It is an arithmetic number, because the mean of its divisors is an integer number (6223980).

Almost surely, 2^40455779 is an apocalyptic number.

40455779 is a deficient number, since it is larger than the sum of its proper divisors (9336061).

40455779 is a wasteful number, since it uses less digits than its factorization.

40455779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444589.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 40455779 is about 6360.4857518903. The cubic root of 40455779 is about 343.2892385846.

The spelling of 40455779 in words is "forty million, four hundred fifty-five thousand, seven hundred seventy-nine".