1964194930 has 8 divisors (see below), whose sum is σ = 3535550892. Its totient is φ = 785677968.

The previous prime is 1964194877. The next prime is 1964194931. The reversal of 1964194930 is 394914691.

It can be written as a sum of positive squares in 2 ways, for example, as 1588261609 + 375933321 = 39853^2 + 19389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1964194931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98209737 + ... + 98209756.

Almost surely, 2^1964194930 is an apocalyptic number.

1964194930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1964194930 is a deficient number, since it is larger than the sum of its proper divisors (1571355962).

1964194930 is a wasteful number, since it uses less digits than its factorization.

1964194930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196419500.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 1964194930 is about 44319.2388246910. The cubic root of 1964194930 is about 1252.3571373954.

The spelling of 1964194930 in words is "one billion, nine hundred sixty-four million, one hundred ninety-four thousand, nine hundred thirty".