1020622005 has 32 divisors (see below), whose sum is σ = 1954014720. Its totient is φ = 502459200.

The previous prime is 1020621991. The next prime is 1020622037. The reversal of 1020622005 is 5002260201.

It is not a de Polignac number, because 1020622005 - 2¹⁶ = 1020556469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289021 + ... + 292530.

It is an arithmetic number, because the mean of its divisors is an integer number (61062960).

Almost surely, 2^1020622005 is an apocalyptic number.

1020622005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020622005 is a deficient number, since it is larger than the sum of its proper divisors (933392715).

1020622005 is a wasteful number, since it uses less digits than its factorization.

1020622005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581578 (or 581572 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1020622005 is about 31947.1752272404. The cubic root of 1020622005 is about 1006.8272837854.

Adding to 1020622005 its reverse (5002260201), we get a palindrome (6022882206).

The spelling of 1020622005 in words is "one billion, twenty million, six hundred twenty-two thousand, five".