1230256216 has 64 divisors (see below), whose sum is σ = 2718434880. Its totient is φ = 510935040.

The previous prime is 1230256207. The next prime is 1230256231. The reversal of 1230256216 is 6126520321.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 581176 + ... + 583288.

It is an arithmetic number, because the mean of its divisors is an integer number (42475545).

Almost surely, 2^1230256216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230256216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1359217440).

1230256216 is an abundant number, since it is smaller than the sum of its proper divisors (1488178664).

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

1230256216 is a wasteful number, since it uses less digits than its factorization.

1230256216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444 (or 2440 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1230256216 is about 35075.0084248030. The cubic root of 1230256216 is about 1071.5156602971.

Adding to 1230256216 its reverse (6126520321), we get a palindrome (7356776537).

The spelling of 1230256216 in words is "one billion, two hundred thirty million, two hundred fifty-six thousand, two hundred sixteen".