320961450 has 24 divisors (see below), whose sum is σ = 795984768. Its totient is φ = 85589680.

The previous prime is 320961427. The next prime is 320961451. The reversal of 320961450 is 54169023.

It is a super-2 number, since 2×320961450² = 206032504772205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (320961451) 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, 1069722 + ... + 1070021.

It is an arithmetic number, because the mean of its divisors is an integer number (33166032).

Almost surely, 2^320961450 is an apocalyptic number.

320961450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

320961450 is an abundant number, since it is smaller than the sum of its proper divisors (475023318).

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

320961450 is a wasteful number, since it uses less digits than its factorization.

320961450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139758 (or 2139753 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 320961450 is about 17915.3970092767. The cubic root of 320961450 is about 684.6747172445.

The spelling of 320961450 in words is "three hundred twenty million, nine hundred sixty-one thousand, four hundred fifty".