1230377616 has 120 divisors (see below), whose sum is σ = 3778492536. Its totient is φ = 371404800.

The previous prime is 1230377591. The next prime is 1230377639. The reversal of 1230377616 is 6167730321.

1230377616 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 37 + 7 + 616 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 74649600 + 1155728016 = 8640^2 + 33996^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 93016 + ... + 105416.

Almost surely, 2^1230377616 is an apocalyptic number.

1230377616 is a gapful number since it is divisible by the number (16) 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 1230377616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1889246268).

1230377616 is an abundant number, since it is smaller than the sum of its proper divisors (2548114920).

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

1230377616 is a wasteful number, since it uses less digits than its factorization.

1230377616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12481 (or 12472 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 1230377616 is about 35076.7389590310. The cubic root of 1230377616 is about 1071.5509043709.

The spelling of 1230377616 in words is "one billion, two hundred thirty million, three hundred seventy-seven thousand, six hundred sixteen".