1230816720 has 320 divisors, whose sum is σ = 4535709696. Its totient is φ = 270274560.

The previous prime is 1230816707. The next prime is 1230816757. The reversal of 1230816720 is 276180321.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 7370077 + ... + 7370243.

Almost surely, 2^1230816720 is an apocalyptic number.

1230816720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230816720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2267854848).

1230816720 is an abundant number, since it is smaller than the sum of its proper divisors (3304892976).

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

1230816720 is a wasteful number, since it uses less digits than its factorization.

1230816720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 1230816720 is about 35082.9975914260. The cubic root of 1230816720 is about 1071.6783628896.

The spelling of 1230816720 in words is "one billion, two hundred thirty million, eight hundred sixteen thousand, seven hundred twenty".