1230245040 has 40 divisors (see below), whose sum is σ = 3813760368. Its totient is φ = 328065280.

The previous prime is 1230245017. The next prime is 1230245099. The reversal of 1230245040 is 405420321.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1230244998 and 1230245016.

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 7 ways as a sum of consecutive naturals, for example, 2562771 + ... + 2563250.

Almost surely, 2^1230245040 is an apocalyptic number.

1230245040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230245040 is an abundant number, since it is smaller than the sum of its proper divisors (2583515328).

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

1230245040 is a wasteful number, since it uses less digits than its factorization.

1230245040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126037 (or 5126031 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1230245040 is about 35074.8491087275. The cubic root of 1230245040 is about 1071.5124156355.

Adding to 1230245040 its reverse (405420321), we get a palindrome (1635665361).

The spelling of 1230245040 in words is "one billion, two hundred thirty million, two hundred forty-five thousand, forty".