269997984 has 72 divisors (see below), whose sum is σ = 777591360. Its totient is φ = 88852608.

The previous prime is 269997979. The next prime is 269998013. The reversal of 269997984 is 489799962.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×269997984² = 145797822728128512, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 16819 + ... + 28685.

It is an arithmetic number, because the mean of its divisors is an integer number (10799880).

Almost surely, 2^269997984 is an apocalyptic number.

269997984 is a gapful number since it is divisible by the number (24) 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 269997984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388795680).

269997984 is an abundant number, since it is smaller than the sum of its proper divisors (507593376).

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

269997984 is a wasteful number, since it uses less digits than its factorization.

269997984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11962 (or 11951 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The square root of 269997984 is about 16431.6153801140. The cubic root of 269997984 is about 646.3287983610.

The spelling of 269997984 in words is "two hundred sixty-nine million, nine hundred ninety-seven thousand, nine hundred eighty-four".