1223409132 has 72 divisors (see below), whose sum is σ = 3430889280. Its totient is φ = 364439520.

The previous prime is 1223409113. The next prime is 1223409149. The reversal of 1223409132 is 2319043221.

It is a happy number.

1223409132 is a `hidden beast` number, since 1 + 223 + 409 + 1 + 32 = 666.

It is a super-3 number, since 3×1223409132³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223409096 and 1223409105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2818 + ... + 49545.

It is an arithmetic number, because the mean of its divisors is an integer number (47651240).

Almost surely, 2^1223409132 is an apocalyptic number.

1223409132 is a gapful number since it is divisible by the number (12) 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 1223409132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1715444640).

1223409132 is an abundant number, since it is smaller than the sum of its proper divisors (2207480148).

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

1223409132 is a wasteful number, since it uses less digits than its factorization.

1223409132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52443 (or 52438 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1223409132 is about 34977.2659308872. The cubic root of 1223409132 is about 1069.5240938322.

The spelling of 1223409132 in words is "one billion, two hundred twenty-three million, four hundred nine thousand, one hundred thirty-two".