1027020420 has 72 divisors (see below), whose sum is σ = 3152874816. Its totient is φ = 270568512.

The previous prime is 1027020409. The next prime is 1027020431. The reversal of 1027020420 is 240207201.

1027020420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1027020409) and next prime (1027020431).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1027020393 and 1027020402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19432 + ... + 49311.

It is an arithmetic number, because the mean of its divisors is an integer number (43789928).

Almost surely, 2^1027020420 is an apocalyptic number.

1027020420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1027020420 is an abundant number, since it is smaller than the sum of its proper divisors (2125854396).

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

1027020420 is a wasteful number, since it uses less digits than its factorization.

1027020420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68841 (or 68836 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1027020420 is about 32047.1593124882. The cubic root of 1027020420 is about 1008.9268803486.

Adding to 1027020420 its reverse (240207201), we get a palindrome (1267227621).

The spelling of 1027020420 in words is "one billion, twenty-seven million, twenty thousand, four hundred twenty".