1030030720 has 32 divisors (see below), whose sum is σ = 2462418720. Its totient is φ = 412012032.

The previous prime is 1030030711. The next prime is 1030030723. The reversal of 1030030720 is 270300301.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1030030694 and 1030030703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030030723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804072 + ... + 805351.

It is an arithmetic number, because the mean of its divisors is an integer number (76950585).

Almost surely, 2^1030030720 is an apocalyptic number.

1030030720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030030720 is an abundant number, since it is smaller than the sum of its proper divisors (1432388000).

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

1030030720 is an equidigital number, since it uses as much as digits as its factorization.

1030030720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609442 (or 1609430 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 1030030720 is about 32094.0916680937. The cubic root of 1030030720 is about 1009.9116741373.

The spelling of 1030030720 in words is "one billion, thirty million, thirty thousand, seven hundred twenty".