323967780 has 72 divisors (see below), whose sum is σ = 997406592. Its totient is φ = 85098816.

The previous prime is 323967779. The next prime is 323967797. The reversal of 323967780 is 87769323.

It is a happy number.

323967780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1372 + ... + 25491.

Almost surely, 2^323967780 is an apocalyptic number.

323967780 is a gapful number since it is divisible by the number (30) 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 323967780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498703296).

323967780 is an abundant number, since it is smaller than the sum of its proper divisors (673438812).

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

323967780 is a wasteful number, since it uses less digits than its factorization.

323967780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26945 (or 26940 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 323967780 is about 17999.1049777482. The cubic root of 323967780 is about 686.8057776829.

The spelling of 323967780 in words is "three hundred twenty-three million, nine hundred sixty-seven thousand, seven hundred eighty".