1963442880 has 504 divisors, whose sum is σ = 8223247968. Its totient is φ = 421134336.

The previous prime is 1963442861. The next prime is 1963442903. The reversal of 1963442880 is 882443691.

It is a happy number.

1963442880 is a `hidden beast` number, since 1 + 9 + 634 + 4 + 2 + 8 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5826072 + ... + 5826408.

Almost surely, 2^1963442880 is an apocalyptic number.

1963442880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1963442880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4111623984).

1963442880 is an abundant number, since it is smaller than the sum of its proper divisors (6259805088).

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

1963442880 is a wasteful number, since it uses less digits than its factorization.

1963442880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 1963442880 is about 44310.7535480948. The cubic root of 1963442880 is about 1252.1972830280.

The spelling of 1963442880 in words is "one billion, nine hundred sixty-three million, four hundred forty-two thousand, eight hundred eighty".