1230405200 has 30 divisors (see below), whose sum is σ = 2956049454. Its totient is φ = 492161920.

The previous prime is 1230405161. The next prime is 1230405223. The reversal of 1230405200 is 25040321.

It can be written as a sum of positive squares in 3 ways, for example, as 168688144 + 1061717056 = 12988^2 + 32584^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1537607 + ... + 1538406.

Almost surely, 2^1230405200 is an apocalyptic number.

1230405200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230405200 is an abundant number, since it is smaller than the sum of its proper divisors (1725644254).

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

1230405200 is a wasteful number, since it uses less digits than its factorization.

1230405200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076031 (or 3076020 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1230405200 is about 35077.1321518735. The cubic root of 1230405200 is about 1071.5589120586.

Adding to 1230405200 its reverse (25040321), we get a palindrome (1255445521).

The spelling of 1230405200 in words is "one billion, two hundred thirty million, four hundred five thousand, two hundred".