1223499984 has 160 divisors (see below), whose sum is σ = 3891655680. Its totient is φ = 323398656.

The previous prime is 1223499967. The next prime is 1223500007. The reversal of 1223499984 is 4899943221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272284 + ... + 276740.

It is an arithmetic number, because the mean of its divisors is an integer number (24322848).

Almost surely, 2^1223499984 is an apocalyptic number.

1223499984 is a gapful number since it is divisible by the number (14) 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 1223499984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1945827840).

1223499984 is an abundant number, since it is smaller than the sum of its proper divisors (2668155696).

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

1223499984 is a wasteful number, since it uses less digits than its factorization.

1223499984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537 (or 4531 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 51.

The square root of 1223499984 is about 34978.5646360739. The cubic root of 1223499984 is about 1069.5505679406.

The spelling of 1223499984 in words is "one billion, two hundred twenty-three million, four hundred ninety-nine thousand, nine hundred eighty-four".