830017530 has 112 divisors (see below), whose sum is σ = 2295483624. Its totient is φ = 215861760.

The previous prime is 830017493. The next prime is 830017541. The reversal of 830017530 is 35710038.

It can be written as a sum of positive squares in 4 ways, for example, as 292102281 + 537915249 = 17091^2 + 23193^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 830017494 and 830017503.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 297502 + ... + 300278.

Almost surely, 2^830017530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 830017530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1147741812).

830017530 is an abundant number, since it is smaller than the sum of its proper divisors (1465466094).

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

830017530 is a wasteful number, since it uses less digits than its factorization.

830017530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843 (or 2828 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 830017530 is about 28810.0248177609. The cubic root of 830017530 is about 939.7862536483.

Adding to 830017530 its reverse (35710038), we get a palindrome (865727568).

The spelling of 830017530 in words is "eight hundred thirty million, seventeen thousand, five hundred thirty".