1205282920 has 32 divisors (see below), whose sum is σ = 2805402600. Its totient is φ = 465488128.

The previous prime is 1205282861. The next prime is 1205282929. The reversal of 1205282920 is 292825021.

It can be written as a sum of positive squares in 4 ways, for example, as 1196744836 + 8538084 = 34594^2 + 2922^2 .

It is not an unprimeable number, because it can be changed into a prime (1205282929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518359 + ... + 520678.

Almost surely, 2^1205282920 is an apocalyptic number.

1205282920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1205282920 is an abundant number, since it is smaller than the sum of its proper divisors (1600119680).

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

1205282920 is a wasteful number, since it uses less digits than its factorization.

1205282920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039077 (or 1039073 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1205282920 is about 34717.1847937012. The cubic root of 1205282920 is about 1064.2157141732.

The spelling of 1205282920 in words is "one billion, two hundred five million, two hundred eighty-two thousand, nine hundred twenty".