1232730900 has 90 divisors (see below), whose sum is σ = 3996052830. Its totient is φ = 328726080.

The previous prime is 1232730859. The next prime is 1232730907. The reversal of 1232730900 is 90372321.

It can be written as a sum of positive squares in 3 ways, for example, as 66781584 + 1165949316 = 8172^2 + 34146^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232730907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 67995 + ... + 84194.

It is an arithmetic number, because the mean of its divisors is an integer number (44400587).

Almost surely, 2^1232730900 is an apocalyptic number.

1232730900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232730900 is an abundant number, since it is smaller than the sum of its proper divisors (2763321930).

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

1232730900 is a wasteful number, since it uses less digits than its factorization.

1232730900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152215 (or 152199 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1232730900 is about 35110.2677289707. The cubic root of 1232730900 is about 1072.2336372120.

The spelling of 1232730900 in words is "one billion, two hundred thirty-two million, seven hundred thirty thousand, nine hundred".