1020622004 has 12 divisors (see below), whose sum is σ = 1786402884. Its totient is φ = 510221184.

The previous prime is 1020621991. The next prime is 1020622037. The reversal of 1020622004 is 4002260201.

It can be written as a sum of positive squares in 2 ways, for example, as 228312100 + 792309904 = 15110^2 + 28148^2 .

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 3 ways as a sum of consecutive naturals, for example, 7574 + ... + 45810.

It is an arithmetic number, because the mean of its divisors is an integer number (148866907).

Almost surely, 2^1020622004 is an apocalyptic number.

It is an amenable number.

1020622004 is a deficient number, since it is larger than the sum of its proper divisors (765780880).

1020622004 is a wasteful number, since it uses less digits than its factorization.

1020622004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44914 (or 44912 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1020622004 is about 31947.1752115895. The cubic root of 1020622004 is about 1006.8272834566.

Adding to 1020622004 its reverse (4002260201), we get a palindrome (5022882205).

The spelling of 1020622004 in words is "one billion, twenty million, six hundred twenty-two thousand, four".