320187384452 has 36 divisors (see below), whose sum is σ = 606897858420. Its totient is φ = 147741714432.

The previous prime is 320187384443. The next prime is 320187384479. The reversal of 320187384452 is 254483781023.

It can be written as a sum of positive squares in 6 ways, for example, as 9207170116 + 310980214336 = 95954^2 + 557656^2 .

It is a super-2 number, since 2×320187384452² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320187384397 and 320187384406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2733848 + ... + 2848560.

It is an arithmetic number, because the mean of its divisors is an integer number (16858273845).

Almost surely, 2^320187384452 is an apocalyptic number.

It is an amenable number.

320187384452 is a deficient number, since it is larger than the sum of its proper divisors (286710473968).

320187384452 is a wasteful number, since it uses less digits than its factorization.

320187384452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118872 (or 118857 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 320187384452 in words is "three hundred twenty billion, one hundred eighty-seven million, three hundred eighty-four thousand, four hundred fifty-two".