1230304540 has 24 divisors (see below), whose sum is σ = 2585016000. Its totient is φ = 491859648.

The previous prime is 1230304513. The next prime is 1230304553. The reversal of 1230304540 is 454030321.

It is a super-2 number, since 2×1230304540² = 3027298522289223200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24594 + ... + 55366.

It is an arithmetic number, because the mean of its divisors is an integer number (107709000).

Almost surely, 2^1230304540 is an apocalyptic number.

1230304540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230304540 is an abundant number, since it is smaller than the sum of its proper divisors (1354711460).

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

1230304540 is a wasteful number, since it uses less digits than its factorization.

1230304540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32781 (or 32779 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1230304540 is about 35075.6972845872. The cubic root of 1230304540 is about 1071.5296896903.

Adding to 1230304540 its reverse (454030321), we get a palindrome (1684334861).

The spelling of 1230304540 in words is "one billion, two hundred thirty million, three hundred four thousand, five hundred forty".