1964644152 has 16 divisors (see below), whose sum is σ = 4911610440. Its totient is φ = 654881376.

The previous prime is 1964644139. The next prime is 1964644159. The reversal of 1964644152 is 2514464691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964644159) 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, 40930063 + ... + 40930110.

Almost surely, 2^1964644152 is an apocalyptic number.

1964644152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1964644152 is an abundant number, since it is smaller than the sum of its proper divisors (2946966288).

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

1964644152 is a wasteful number, since it uses less digits than its factorization.

1964644152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81860182 (or 81860178 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 1964644152 is about 44324.3065597196. The cubic root of 1964644152 is about 1252.4526037340.

The spelling of 1964644152 in words is "one billion, nine hundred sixty-four million, six hundred forty-four thousand, one hundred fifty-two".