1208950920 has 320 divisors, whose sum is σ = 4403393280. Its totient is φ = 296331264.

The previous prime is 1208950901. The next prime is 1208950931. The reversal of 1208950920 is 290598021.

1208950920 is a `hidden beast` number, since 120 + 8 + 9 + 509 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2588527 + ... + 2588993.

It is an arithmetic number, because the mean of its divisors is an integer number (13760604).

Almost surely, 2^1208950920 is an apocalyptic number.

1208950920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1208950920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2201696640).

1208950920 is an abundant number, since it is smaller than the sum of its proper divisors (3194442360).

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

1208950920 is a wasteful number, since it uses less digits than its factorization.

1208950920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1208950920 is about 34769.9715271669. The cubic root of 1208950920 is about 1065.2941857399.

It can be divided in two parts, 12089509 and 20, that added together give a square (12089529 = 3477²).

The spelling of 1208950920 in words is "one billion, two hundred eight million, nine hundred fifty thousand, nine hundred twenty".