1055843964 has 144 divisors (see below), whose sum is σ = 3211407360. Its totient is φ = 299103840.

The previous prime is 1055843963. The next prime is 1055843981. The reversal of 1055843964 is 4693485501.

1055843964 is a `hidden beast` number, since 1 + 0 + 5 + 584 + 3 + 9 + 64 = 666.

It is a super-2 number, since 2×1055843964² = 2229612952630466592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055843963) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 671299 + ... + 672869.

It is an arithmetic number, because the mean of its divisors is an integer number (22301440).

Almost surely, 2^1055843964 is an apocalyptic number.

1055843964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1055843964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1605703680).

1055843964 is an abundant number, since it is smaller than the sum of its proper divisors (2155563396).

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

1055843964 is a wasteful number, since it uses less digits than its factorization.

1055843964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725 (or 1710 counting only the distinct ones).

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

The square root of 1055843964 is about 32493.7526918637. The cubic root of 1055843964 is about 1018.2785149168.

The spelling of 1055843964 in words is "one billion, fifty-five million, eight hundred forty-three thousand, nine hundred sixty-four".