1964343933 has 32 divisors (see below), whose sum is σ = 2965564800. Its totient is φ = 1284812928.

The previous prime is 1964343919. The next prime is 1964343943. The reversal of 1964343933 is 3393434691.

It is not a de Polignac number, because 1964343933 - 2⁶ = 1964343869 is a prime.

It is a super-2 number, since 2×1964343933² = 7717294174227816978, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964343943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385758 + ... + 390816.

It is an arithmetic number, because the mean of its divisors is an integer number (92673900).

Almost surely, 2^1964343933 is an apocalyptic number.

It is an amenable number.

1964343933 is a deficient number, since it is larger than the sum of its proper divisors (1001220867).

1964343933 is a wasteful number, since it uses less digits than its factorization.

1964343933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5338 (or 5332 counting only the distinct ones).

The product of its digits is 629856, while the sum is 45.

The square root of 1964343933 is about 44320.9198122061. The cubic root of 1964343933 is about 1252.3888043563.

The spelling of 1964343933 in words is "one billion, nine hundred sixty-four million, three hundred forty-three thousand, nine hundred thirty-three".