1216030464 has 108 divisors (see below), whose sum is σ = 3824933112. Its totient is φ = 368486400.

The previous prime is 1216030421. The next prime is 1216030471. The reversal of 1216030464 is 4640306121.

1216030464 is a `hidden beast` number, since 12 + 1 + 603 + 0 + 46 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1354 + ... + 49334.

Almost surely, 2^1216030464 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 1216030464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1912466556).

1216030464 is an abundant number, since it is smaller than the sum of its proper divisors (2608902648).

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

1216030464 is a wasteful number, since it uses less digits than its factorization.

1216030464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48014 (or 47997 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1216030464 is about 34871.6283531469. The cubic root of 1216030464 is about 1067.3695728121.

Adding to 1216030464 its reverse (4640306121), we get a palindrome (5856336585).

It can be divided in two parts, 12160 and 30464, that added together give a palindrome (42624).

The spelling of 1216030464 in words is "one billion, two hundred sixteen million, thirty thousand, four hundred sixty-four".