1963433436 has 12 divisors (see below), whose sum is σ = 4581344712. Its totient is φ = 654477808.

The previous prime is 1963433393. The next prime is 1963433441. The reversal of 1963433436 is 6343343691.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81809715 + ... + 81809738.

It is an arithmetic number, because the mean of its divisors is an integer number (381778726).

Almost surely, 2^1963433436 is an apocalyptic number.

It is an amenable number.

1963433436 is an abundant number, since it is smaller than the sum of its proper divisors (2617911276).

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

1963433436 is a wasteful number, since it uses less digits than its factorization.

1963433436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163619460 (or 163619458 counting only the distinct ones).

The product of its digits is 419904, while the sum is 42.

The square root of 1963433436 is about 44310.6469824127. The cubic root of 1963433436 is about 1252.1952753692.

The spelling of 1963433436 in words is "one billion, nine hundred sixty-three million, four hundred thirty-three thousand, four hundred thirty-six".