1085664454 has 32 divisors (see below), whose sum is σ = 1923618816. Its totient is φ = 449703360.

The previous prime is 1085664409. The next prime is 1085664457. The reversal of 1085664454 is 4544665801.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1085664454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085664457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618442 + ... + 620194.

It is an arithmetic number, because the mean of its divisors is an integer number (60113088).

Almost surely, 2^1085664454 is an apocalyptic number.

1085664454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1085664454 is a deficient number, since it is larger than the sum of its proper divisors (837954362).

1085664454 is a wasteful number, since it uses less digits than its factorization.

1085664454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220.

The product of its (nonzero) digits is 460800, while the sum is 43.

The square root of 1085664454 is about 32949.4226656553. The cubic root of 1085664454 is about 1027.7761597100.

The spelling of 1085664454 in words is "one billion, eighty-five million, six hundred sixty-four thousand, four hundred fifty-four".