320040055452 has 48 divisors (see below), whose sum is σ = 804350113952. Its totient is φ = 98455875840.

The previous prime is 320040055411. The next prime is 320040055469. The reversal of 320040055452 is 254550040023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682302 + ... + 1051482.

Almost surely, 2^320040055452 is an apocalyptic number.

It is an amenable number.

320040055452 is an abundant number, since it is smaller than the sum of its proper divisors (484310058500).

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

320040055452 is a wasteful number, since it uses less digits than its factorization.

320040055452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374758 (or 374756 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

Adding to 320040055452 its reverse (254550040023), we get a palindrome (574590095475).

The spelling of 320040055452 in words is "three hundred twenty billion, forty million, fifty-five thousand, four hundred fifty-two".