40890455345 has 8 divisors (see below), whose sum is σ = 49092070464. Its totient is φ = 32696681584.

The previous prime is 40890455227. The next prime is 40890455369. The reversal of 40890455345 is 54355409804.

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

It is a cyclic number.

It is not a de Polignac number, because 40890455345 - 2²⁰ = 40889406769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40890455345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1948859 + ... + 1969728.

It is an arithmetic number, because the mean of its divisors is an integer number (6136508808).

Almost surely, 2^40890455345 is an apocalyptic number.

It is an amenable number.

40890455345 is a deficient number, since it is larger than the sum of its proper divisors (8201615119).

40890455345 is a wasteful number, since it uses less digits than its factorization.

40890455345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3920679.

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 40890455345 in words is "forty billion, eight hundred ninety million, four hundred fifty-five thousand, three hundred forty-five".