1427808020 has 12 divisors (see below), whose sum is σ = 2998396884. Its totient is φ = 571123200.

The previous prime is 1427807987. The next prime is 1427808037. The reversal of 1427808020 is 208087241.

It can be written as a sum of positive squares in 2 ways, for example, as 179881744 + 1247926276 = 13412^2 + 35326^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35695181 + ... + 35695220.

It is an arithmetic number, because the mean of its divisors is an integer number (249866407).

Almost surely, 2^1427808020 is an apocalyptic number.

1427808020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1427808020 is an abundant number, since it is smaller than the sum of its proper divisors (1570588864).

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

1427808020 is a wasteful number, since it uses less digits than its factorization.

1427808020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71390410 (or 71390408 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 1427808020 is about 37786.3470052346. The cubic root of 1427808020 is about 1126.0472276641.

The spelling of 1427808020 in words is "one billion, four hundred twenty-seven million, eight hundred eight thousand, twenty".