1030643100 has 162 divisors, whose sum is σ = 3301991784. Its totient is φ = 268833600.

The previous prime is 1030643077. The next prime is 1030643137. The reversal of 1030643100 is 13460301.

1030643100 is a `hidden beast` number, since 10 + 3 + 0 + 643 + 10 + 0 = 666.

It is a super-2 number, since 2×1030643100² = 2124450399155220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 53 ways as a sum of consecutive naturals, for example, 8115237 + ... + 8115363.

Almost surely, 2^1030643100 is an apocalyptic number.

1030643100 is a gapful number since it is divisible by the number (10) 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 1030643100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1650995892).

1030643100 is an abundant number, since it is smaller than the sum of its proper divisors (2271348684).

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

1030643100 is a wasteful number, since it uses less digits than its factorization.

1030643100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1030643100 is about 32103.6306358019. The cubic root of 1030643100 is about 1010.1117740560. Note that the first 3 decimals are identical.

The spelling of 1030643100 in words is "one billion, thirty million, six hundred forty-three thousand, one hundred".