1964893632 has 56 divisors (see below), whose sum is σ = 5598694416. Its totient is φ = 604581888.

The previous prime is 1964893603. The next prime is 1964893633. The reversal of 1964893632 is 2363984691.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964893633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391113 + ... + 396104.

It is an arithmetic number, because the mean of its divisors is an integer number (99976686).

Almost surely, 2^1964893632 is an apocalyptic number.

1964893632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1964893632 is an abundant number, since it is smaller than the sum of its proper divisors (3633800784).

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

1964893632 is a wasteful number, since it uses less digits than its factorization.

1964893632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787245 (or 787235 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 51.

The square root of 1964893632 is about 44327.1207276087. The cubic root of 1964893632 is about 1252.5056156497.

The spelling of 1964893632 in words is "one billion, nine hundred sixty-four million, eight hundred ninety-three thousand, six hundred thirty-two".