1068143720 has 32 divisors (see below), whose sum is σ = 2746656000. Its totient is φ = 366220608.

The previous prime is 1068143717. The next prime is 1068143723. The reversal of 1068143720 is 273418601.

It is an interprime number because it is at equal distance from previous prime (1068143717) and next prime (1068143723).

It is a super-2 number, since 2×1068143720² = 2281862013150876800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1068143723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1907120 + ... + 1907679.

It is an arithmetic number, because the mean of its divisors is an integer number (85833000).

Almost surely, 2^1068143720 is an apocalyptic number.

1068143720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1068143720 is an abundant number, since it is smaller than the sum of its proper divisors (1678512280).

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

1068143720 is a wasteful number, since it uses less digits than its factorization.

1068143720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3814817 (or 3814813 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1068143720 is about 32682.4680830564. The cubic root of 1068143720 is about 1022.2173089626.

The spelling of 1068143720 in words is "one billion, sixty-eight million, one hundred forty-three thousand, seven hundred twenty".