611235030 has 128 divisors (see below), whose sum is σ = 1747630080. Its totient is φ = 133862400.

The previous prime is 611235013. The next prime is 611235041. The reversal of 611235030 is 30532116.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 611234988 and 611235006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1016730 + ... + 1017330.

It is an arithmetic number, because the mean of its divisors is an integer number (13653360).

Almost surely, 2^611235030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611235030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873815040).

611235030 is an abundant number, since it is smaller than the sum of its proper divisors (1136395050).

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

611235030 is a wasteful number, since it uses less digits than its factorization.

611235030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 611235030 is about 24723.1678795417. The cubic root of 611235030 is about 848.6645835626.

Adding to 611235030 its reverse (30532116), we get a palindrome (641767146).

It can be divided in two parts, 611 and 235030, that added together give a triangular number (235641 = T₆₈₆).

The spelling of 611235030 in words is "six hundred eleven million, two hundred thirty-five thousand, thirty".