1208021060 has 24 divisors (see below), whose sum is σ = 2537508120. Its totient is φ = 483081984.

The previous prime is 1208021041. The next prime is 1208021069. The reversal of 1208021060 is 601208021.

It can be written as a sum of positive squares in 4 ways, for example, as 121132036 + 1086889024 = 11006^2 + 32968^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1208021069) 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, 124712 + ... + 134048.

It is an arithmetic number, because the mean of its divisors is an integer number (105729505).

Almost surely, 2^1208021060 is an apocalyptic number.

1208021060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1208021060 is an abundant number, since it is smaller than the sum of its proper divisors (1329487060).

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

1208021060 is a wasteful number, since it uses less digits than its factorization.

1208021060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15815 (or 15813 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1208021060 is about 34756.5973593504. The cubic root of 1208021060 is about 1065.0209933631.

Adding to 1208021060 its reverse (601208021), we get a palindrome (1809229081).

The spelling of 1208021060 in words is "one billion, two hundred eight million, twenty-one thousand, sixty".