1000220984 has 16 divisors (see below), whose sum is σ = 2143330800. Its totient is φ = 428666112.

The previous prime is 1000220927. The next prime is 1000220999. The reversal of 1000220984 is 4890220001.

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, 8930489 + ... + 8930600.

It is an arithmetic number, because the mean of its divisors is an integer number (133958175).

Almost surely, 2^1000220984 is an apocalyptic number.

1000220984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1000220984 is an abundant number, since it is smaller than the sum of its proper divisors (1143109816).

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

1000220984 is a wasteful number, since it uses less digits than its factorization.

1000220984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17861102 (or 17861098 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1000220984 is about 31626.2704725043. The cubic root of 1000220984 is about 1000.0736559080.

Adding to 1000220984 its reverse (4890220001), we get a palindrome (5890440985).

The spelling of 1000220984 in words is "one billion, two hundred twenty thousand, nine hundred eighty-four".