323404013400 has 384 divisors, whose sum is σ = 1089651091200. Its totient is φ = 78875596800.

The previous prime is 323404013371. The next prime is 323404013411. The reversal of 323404013400 is 4310404323.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 591231927 + ... + 591232473.

It is an arithmetic number, because the mean of its divisors is an integer number (2837633050).

Almost surely, 2^323404013400 is an apocalyptic number.

323404013400 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 323404013400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544825545600).

323404013400 is an abundant number, since it is smaller than the sum of its proper divisors (766247077800).

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

323404013400 is a wasteful number, since it uses less digits than its factorization.

323404013400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 323404013400 its reverse (4310404323), we get a palindrome (327714417723).

The spelling of 323404013400 in words is "three hundred twenty-three billion, four hundred four million, thirteen thousand, four hundred".