1208902220 has 24 divisors (see below), whose sum is σ = 2600615808. Its totient is φ = 471766400.

The previous prime is 1208902213. The next prime is 1208902237. The reversal of 1208902220 is 222098021.

It is a super-2 number, since 2×1208902220² = 2922889155041856800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1208902220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736316 + ... + 737955.

It is an arithmetic number, because the mean of its divisors is an integer number (108358992).

Almost surely, 2^1208902220 is an apocalyptic number.

1208902220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1208902220 is an abundant number, since it is smaller than the sum of its proper divisors (1391713588).

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

1208902220 is a wasteful number, since it uses less digits than its factorization.

1208902220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474321 (or 1474319 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1208902220 is about 34769.2712031759. The cubic root of 1208902220 is about 1065.2798811825.

The spelling of 1208902220 in words is "one billion, two hundred eight million, nine hundred two thousand, two hundred twenty".