1252232330 has 16 divisors (see below), whose sum is σ = 2274699240. Its totient is φ = 496297152.

The previous prime is 1252232287. The next prime is 1252232363. The reversal of 1252232330 is 332322521.

It can be written as a sum of positive squares in 4 ways, for example, as 1102439209 + 149793121 = 33203^2 + 12239^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1252232296 and 1252232305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573329 + ... + 575508.

Almost surely, 2^1252232330 is an apocalyptic number.

1252232330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252232330 is a deficient number, since it is larger than the sum of its proper divisors (1022466910).

1252232330 is a wasteful number, since it uses less digits than its factorization.

1252232330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148953.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 1252232330 is about 35386.8948906230. The cubic root of 1252232330 is about 1077.8582182220.

Adding to 1252232330 its reverse (332322521), we get a palindrome (1584554851).

The spelling of 1252232330 in words is "one billion, two hundred fifty-two million, two hundred thirty-two thousand, three hundred thirty".