1320763250 has 32 divisors (see below), whose sum is σ = 2478705840. Its totient is φ = 526972800.

The previous prime is 1320763237. The next prime is 1320763259. The reversal of 1320763250 is 523670231.

It can be written as a sum of positive squares in 8 ways, for example, as 247086961 + 1073676289 = 15719^2 + 32767^2 .

It is not an unprimeable number, because it can be changed into a prime (1320763259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95792 + ... + 108708.

Almost surely, 2^1320763250 is an apocalyptic number.

1320763250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320763250 is a deficient number, since it is larger than the sum of its proper divisors (1157942590).

1320763250 is a wasteful number, since it uses less digits than its factorization.

1320763250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13343 (or 13333 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 1320763250 is about 36342.3066136425. The cubic root of 1320763250 is about 1097.1726979611.

The spelling of 1320763250 in words is "one billion, three hundred twenty million, seven hundred sixty-three thousand, two hundred fifty".