1208389280 has 48 divisors (see below), whose sum is σ = 3262654080. Its totient is φ = 414304512.

The previous prime is 1208389277. The next prime is 1208389289. The reversal of 1208389280 is 829838021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1208389289) 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, 538340 + ... + 540579.

It is an arithmetic number, because the mean of its divisors is an integer number (67971960).

Almost surely, 2^1208389280 is an apocalyptic number.

1208389280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1208389280 is an abundant number, since it is smaller than the sum of its proper divisors (2054264800).

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

1208389280 is a wasteful number, since it uses less digits than its factorization.

1208389280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078941 (or 1078933 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 1208389280 is about 34761.8940795809. The cubic root of 1208389280 is about 1065.1291929646.

The spelling of 1208389280 in words is "one billion, two hundred eight million, three hundred eighty-nine thousand, two hundred eighty".