1230945072 has 120 divisors (see below), whose sum is σ = 3712481136. Its totient is φ = 350429184.

The previous prime is 1230945043. The next prime is 1230945083. The reversal of 1230945072 is 2705490321.

1230945072 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 791848 + ... + 793400.

Almost surely, 2^1230945072 is an apocalyptic number.

1230945072 is a gapful number since it is divisible by the number (12) 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 1230945072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1856240568).

1230945072 is an abundant number, since it is smaller than the sum of its proper divisors (2481536064).

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

1230945072 is a wasteful number, since it uses less digits than its factorization.

1230945072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915 (or 1902 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1230945072 is about 35084.8268059000. The cubic root of 1230945072 is about 1071.7156138406.

The spelling of 1230945072 in words is "one billion, two hundred thirty million, nine hundred forty-five thousand, seventy-two".