612720230 has 16 divisors (see below), whose sum is σ = 1150848864. Its totient is φ = 234432000.

The previous prime is 612720223. The next prime is 612720271. The reversal of 612720230 is 32027216.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 612720196 and 612720205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331771 + ... + 1332230.

It is an arithmetic number, because the mean of its divisors is an integer number (71928054).

Almost surely, 2^612720230 is an apocalyptic number.

612720230 is a deficient number, since it is larger than the sum of its proper divisors (538128634).

612720230 is a wasteful number, since it uses less digits than its factorization.

612720230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664031.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 612720230 is about 24753.1862595505. The cubic root of 612720230 is about 849.3513990915.

Adding to 612720230 its reverse (32027216), we get a palindrome (644747446).

The spelling of 612720230 in words is "six hundred twelve million, seven hundred twenty thousand, two hundred thirty".