1083918864 has 40 divisors (see below), whose sum is σ = 3200142400. Its totient is φ = 309691008.

The previous prime is 1083918853. The next prime is 1083918919. The reversal of 1083918864 is 4688193801.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1612639 + ... + 1613310.

It is an arithmetic number, because the mean of its divisors is an integer number (80003560).

Almost surely, 2^1083918864 is an apocalyptic number.

1083918864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1083918864 is an abundant number, since it is smaller than the sum of its proper divisors (2116223536).

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

1083918864 is a wasteful number, since it uses less digits than its factorization.

1083918864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225967 (or 3225961 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 1083918864 is about 32922.9230780014. The cubic root of 1083918864 is about 1027.2250262000.

The spelling of 1083918864 in words is "one billion, eighty-three million, nine hundred eighteen thousand, eight hundred sixty-four".