1075720030 has 80 divisors (see below), whose sum is σ = 2464835184. Its totient is φ = 335207040.

The previous prime is 1075720021. The next prime is 1075720031. The reversal of 1075720030 is 300275701.

It is a junction number, because it is equal to n+sod(n) for n = 1075719977 and 1075720004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1075720031) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 262074 + ... + 266146.

Almost surely, 2^1075720030 is an apocalyptic number.

1075720030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1075720030 is an abundant number, since it is smaller than the sum of its proper divisors (1389115154).

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

1075720030 is an equidigital number, since it uses as much as digits as its factorization.

1075720030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4119 (or 4098 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 1075720030 is about 32798.1711380376. The cubic root of 1075720030 is about 1024.6284689566.

Adding to 1075720030 its reverse (300275701), we get a palindrome (1375995731).

The spelling of 1075720030 in words is "one billion, seventy-five million, seven hundred twenty thousand, thirty".