1063919988 has 48 divisors (see below), whose sum is σ = 2825598720. Its totient is φ = 345988800.

The previous prime is 1063919977. The next prime is 1063919999. The reversal of 1063919988 is 8899193601.

It is an interprime number because it is at equal distance from previous prime (1063919977) and next prime (1063919999).

It is a super-2 number, since 2×1063919988² = 2263851481731840288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115708 + ... + 124563.

It is an arithmetic number, because the mean of its divisors is an integer number (58866640).

Almost surely, 2^1063919988 is an apocalyptic number.

1063919988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1063919988 is an abundant number, since it is smaller than the sum of its proper divisors (1761678732).

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

1063919988 is a wasteful number, since it uses less digits than its factorization.

1063919988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240325 (or 240317 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 54.

The square root of 1063919988 is about 32617.7863749213. The cubic root of 1063919988 is about 1020.8681536115.

The spelling of 1063919988 in words is "one billion, sixty-three million, nine hundred nineteen thousand, nine hundred eighty-eight".