1043946855 has 48 divisors (see below), whose sum is σ = 2134738944. Its totient is φ = 461833920.

The previous prime is 1043946847. The next prime is 1043946881. The reversal of 1043946855 is 5586493401.

1043946855 is a `hidden beast` number, since 104 + 39 + 468 + 55 = 666.

It is not a de Polignac number, because 1043946855 - 2³ = 1043946847 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1043946855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43689 + ... + 63218.

It is an arithmetic number, because the mean of its divisors is an integer number (44473728).

Almost surely, 2^1043946855 is an apocalyptic number.

1043946855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1043946855 is an abundant number, since it is smaller than the sum of its proper divisors (1090792089).

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

1043946855 is a wasteful number, since it uses less digits than its factorization.

1043946855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106956 (or 106953 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 1043946855 is about 32310.1664341117. The cubic root of 1043946855 is about 1014.4394504077.

The spelling of 1043946855 in words is "one billion, forty-three million, nine hundred forty-six thousand, eight hundred fifty-five".