320211152 has 40 divisors (see below), whose sum is σ = 668290560. Its totient is φ = 148199040.

The previous prime is 320211139. The next prime is 320211163. The reversal of 320211152 is 251112023.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 320211152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2627 + ... + 25442.

It is an arithmetic number, because the mean of its divisors is an integer number (16707264).

Almost surely, 2^320211152 is an apocalyptic number.

It is an amenable number.

320211152 is an abundant number, since it is smaller than the sum of its proper divisors (348079408).

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

320211152 is a wasteful number, since it uses less digits than its factorization.

320211152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28131 (or 28125 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 320211152 is about 17894.4447245507. Note that the first 3 decimals coincide. The cubic root of 320211152 is about 684.1407892765.

Adding to 320211152 its reverse (251112023), we get a palindrome (571323175).

The spelling of 320211152 in words is "three hundred twenty million, two hundred eleven thousand, one hundred fifty-two".