612622530 has 96 divisors (see below), whose sum is σ = 1724866416. Its totient is φ = 149962752.

The previous prime is 612622519. The next prime is 612622541. The reversal of 612622530 is 35226216.

612622530 is a `hidden beast` number, since 6 + 1 + 2 + 622 + 5 + 30 = 666.

It is an interprime number because it is at equal distance from previous prime (612622519) and next prime (612622541).

It can be written as a sum of positive squares in 8 ways, for example, as 265657401 + 346965129 = 16299^2 + 18627^2 .

It is a junction number, because it is equal to n+sod(n) for n = 612622494 and 612622503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 224454 + ... + 227166.

Almost surely, 2^612622530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612622530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862433208).

612622530 is an abundant number, since it is smaller than the sum of its proper divisors (1112243886).

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

612622530 is a wasteful number, since it uses less digits than its factorization.

612622530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932 (or 2929 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 612622530 is about 24751.2126975629. The cubic root of 612622530 is about 849.3062528521.

Adding to 612622530 its reverse (35226216), we get a palindrome (647848746).

The spelling of 612622530 in words is "six hundred twelve million, six hundred twenty-two thousand, five hundred thirty".