1964430980 has 12 divisors (see below), whose sum is σ = 4125305100. Its totient is φ = 785772384.

The previous prime is 1964430967. The next prime is 1964430997. The reversal of 1964430980 is 890344691.

It can be written as a sum of positive squares in 2 ways, for example, as 1527871744 + 436559236 = 39088^2 + 20894^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49110755 + ... + 49110794.

It is an arithmetic number, because the mean of its divisors is an integer number (343775425).

Almost surely, 2^1964430980 is an apocalyptic number.

1964430980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1964430980 is an abundant number, since it is smaller than the sum of its proper divisors (2160874120).

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

1964430980 is a wasteful number, since it uses less digits than its factorization.

1964430980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98221558 (or 98221556 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1964430980 is about 44321.9018093764. The cubic root of 1964430980 is about 1252.4073033364.

The spelling of 1964430980 in words is "one billion, nine hundred sixty-four million, four hundred thirty thousand, nine hundred eighty".