1027451220 has 48 divisors (see below), whose sum is σ = 3028280640. Its totient is φ = 259566336.

The previous prime is 1027451189. The next prime is 1027451233. The reversal of 1027451220 is 221547201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449497 + ... + 451776.

It is an arithmetic number, because the mean of its divisors is an integer number (63089180).

Almost surely, 2^1027451220 is an apocalyptic number.

1027451220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1027451220 is an abundant number, since it is smaller than the sum of its proper divisors (2000829420).

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

1027451220 is a wasteful number, since it uses less digits than its factorization.

1027451220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901304 (or 901302 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 1027451220 is about 32053.8799523552. The cubic root of 1027451220 is about 1009.0679307545.

Adding to 1027451220 its reverse (221547201), we get a palindrome (1248998421).

The spelling of 1027451220 in words is "one billion, twenty-seven million, four hundred fifty-one thousand, two hundred twenty".