1230649344 has 144 divisors (see below), whose sum is σ = 3583780200. Its totient is φ = 406831104.

The previous prime is 1230649337. The next prime is 1230649391. The reversal of 1230649344 is 4439460321.

It is a happy number.

1230649344 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 649 + 3 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a junction number, because it is equal to n+sod(n) for n = 1230649299 and 1230649308.

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, 3299142 + ... + 3299514.

Almost surely, 2^1230649344 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 1230649344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1791890100).

1230649344 is an abundant number, since it is smaller than the sum of its proper divisors (2353130856).

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

1230649344 is a wasteful number, since it uses less digits than its factorization.

1230649344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 557 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 1230649344 is about 35080.6120813192. The cubic root of 1230649344 is about 1071.6297823099.

The spelling of 1230649344 in words is "one billion, two hundred thirty million, six hundred forty-nine thousand, three hundred forty-four".