1427883220 has 24 divisors (see below), whose sum is σ = 3071692008. Its totient is φ = 557222400.

The previous prime is 1427883167. The next prime is 1427883251. The reversal of 1427883220 is 223887241.

It can be written as a sum of positive squares in 4 ways, for example, as 107868996 + 1320014224 = 10386^2 + 36332^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1427883220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869841 + ... + 871480.

It is an arithmetic number, because the mean of its divisors is an integer number (127987167).

Almost surely, 2^1427883220 is an apocalyptic number.

1427883220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1427883220 is an abundant number, since it is smaller than the sum of its proper divisors (1643808788).

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

1427883220 is a wasteful number, since it uses less digits than its factorization.

1427883220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741371 (or 1741369 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 1427883220 is about 37787.3420605366. The cubic root of 1427883220 is about 1126.0669962566.

The spelling of 1427883220 in words is "one billion, four hundred twenty-seven million, eight hundred eighty-three thousand, two hundred twenty".