1068662920 has 32 divisors (see below), whose sum is σ = 2589453720. Its totient is φ = 394583040.

The previous prime is 1068662911. The next prime is 1068662939. The reversal of 1068662920 is 292668601.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 643231044 + 425431876 = 25362^2 + 20626^2 .

It is a super-2 number, since 2×1068662920² = 2284080873165852800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1027041 + ... + 1028080.

Almost surely, 2^1068662920 is an apocalyptic number.

1068662920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1068662920 is an abundant number, since it is smaller than the sum of its proper divisors (1520790800).

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

1068662920 is a wasteful number, since it uses less digits than its factorization.

1068662920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055145 (or 2055141 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 1068662920 is about 32690.4102146180. The cubic root of 1068662920 is about 1022.3829075449.

The spelling of 1068662920 in words is "one billion, sixty-eight million, six hundred sixty-two thousand, nine hundred twenty".