1206305320 has 32 divisors (see below), whose sum is σ = 2960932320. Its totient is φ = 438656320.

The previous prime is 1206305237. The next prime is 1206305333. The reversal of 1206305320 is 235036021.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1206305291 and 1206305300.

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, 1370362 + ... + 1371241.

It is an arithmetic number, because the mean of its divisors is an integer number (92529135).

Almost surely, 2^1206305320 is an apocalyptic number.

1206305320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1206305320 is an abundant number, since it is smaller than the sum of its proper divisors (1754627000).

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

1206305320 is a wasteful number, since it uses less digits than its factorization.

1206305320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741625 (or 2741621 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1206305320 is about 34731.9063686403. The cubic root of 1206305320 is about 1064.5165416442.

The spelling of 1206305320 in words is "one billion, two hundred six million, three hundred five thousand, three hundred twenty".