1230722672 has 40 divisors (see below), whose sum is σ = 2444010240. Its totient is φ = 600200640.

The previous prime is 1230722671. The next prime is 1230722681. The reversal of 1230722672 is 2762270321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230722671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99047 + ... + 110777.

It is an arithmetic number, because the mean of its divisors is an integer number (61100256).

Almost surely, 2^1230722672 is an apocalyptic number.

It is an amenable number.

1230722672 is a deficient number, since it is larger than the sum of its proper divisors (1213287568).

1230722672 is a wasteful number, since it uses less digits than its factorization.

1230722672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11901 (or 11895 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 1230722672 is about 35081.6572014493. The cubic root of 1230722672 is about 1071.6510661707.

Adding to 1230722672 its reverse (2762270321), we get a palindrome (3992992993).

The spelling of 1230722672 in words is "one billion, two hundred thirty million, seven hundred twenty-two thousand, six hundred seventy-two".