1964323630 has 32 divisors (see below), whose sum is σ = 3653304768. Its totient is φ = 760032000.

The previous prime is 1964323591. The next prime is 1964323631. The reversal of 1964323630 is 363234691.

It is a self number, because there is not a number n which added to its sum of digits gives 1964323630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964323631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11530 + ... + 63730.

It is an arithmetic number, because the mean of its divisors is an integer number (114165774).

Almost surely, 2^1964323630 is an apocalyptic number.

1964323630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1964323630 is a deficient number, since it is larger than the sum of its proper divisors (1688981138).

1964323630 is a wasteful number, since it uses less digits than its factorization.

1964323630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52332.

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 1964323630 is about 44320.6907662775. The cubic root of 1964323630 is about 1252.3844895421.

The spelling of 1964323630 in words is "one billion, nine hundred sixty-four million, three hundred twenty-three thousand, six hundred thirty".