1320648974 has 4 divisors (see below), whose sum is σ = 1980973464. Its totient is φ = 660324486.

The previous prime is 1320648971. The next prime is 1320649019. The reversal of 1320648974 is 4798460231.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1320648974² = 3488227425054505352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320648971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330162242 + ... + 330162245.

It is an arithmetic number, because the mean of its divisors is an integer number (495243366).

Almost surely, 2^1320648974 is an apocalyptic number.

1320648974 is a deficient number, since it is larger than the sum of its proper divisors (660324490).

1320648974 is an equidigital number, since it uses as much as digits as its factorization.

1320648974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660324489.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 1320648974 is about 36340.7343624204. The cubic root of 1320648974 is about 1097.1410536011.

The spelling of 1320648974 in words is "one billion, three hundred twenty million, six hundred forty-eight thousand, nine hundred seventy-four".