320223400 has 48 divisors (see below), whose sum is σ = 850883040. Its totient is φ = 109790400.

The previous prime is 320223383. The next prime is 320223401. The reversal of 320223400 is 4322023.

It is not an unprimeable number, because it can be changed into a prime (320223401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112966 + ... + 115765.

It is an arithmetic number, because the mean of its divisors is an integer number (17726730).

Almost surely, 2^320223400 is an apocalyptic number.

It is an amenable number.

320223400 is an abundant number, since it is smaller than the sum of its proper divisors (530659640).

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

320223400 is a wasteful number, since it uses less digits than its factorization.

320223400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228754 (or 228745 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 320223400 is about 17894.7869503942. The cubic root of 320223400 is about 684.1495119058.

Adding to 320223400 its reverse (4322023), we get a palindrome (324545423).

The spelling of 320223400 in words is "three hundred twenty million, two hundred twenty-three thousand, four hundred".