1144455678 has 24 divisors (see below), whose sum is σ = 2480306400. Its totient is φ = 381384864.

The previous prime is 1144455677. The next prime is 1144455721. The reversal of 1144455678 is 8765544411.

1144455678 is a `hidden beast` number, since 1 + 1 + 44 + 45 + 567 + 8 = 666.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144455677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99658 + ... + 110546.

It is an arithmetic number, because the mean of its divisors is an integer number (103346100).

Almost surely, 2^1144455678 is an apocalyptic number.

1144455678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1144455678 is an abundant number, since it is smaller than the sum of its proper divisors (1335850722).

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

1144455678 is a wasteful number, since it uses less digits than its factorization.

1144455678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16736 (or 16733 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 1144455678 is about 33829.8045811678. The cubic root of 1144455678 is about 1046.0031507838.

The spelling of 1144455678 in words is "one billion, one hundred forty-four million, four hundred fifty-five thousand, six hundred seventy-eight".