1321040270 has 32 divisors (see below), whose sum is σ = 2597806080. Its totient is φ = 479681440.

The previous prime is 1321040269. The next prime is 1321040353. The reversal of 1321040270 is 720401231.

It is a congruent number.

It is an unprimeable number.

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, 70739 + ... + 87441.

It is an arithmetic number, because the mean of its divisors is an integer number (81181440).

Almost surely, 2^1321040270 is an apocalyptic number.

1321040270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321040270 is a deficient number, since it is larger than the sum of its proper divisors (1276765810).

1321040270 is a wasteful number, since it uses less digits than its factorization.

1321040270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17440.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1321040270 is about 36346.1176743817. The cubic root of 1321040270 is about 1097.2494004622.

The spelling of 1321040270 in words is "one billion, three hundred twenty-one million, forty thousand, two hundred seventy".