1020508090 has 32 divisors (see below), whose sum is σ = 2104133760. Its totient is φ = 349088064.

The previous prime is 1020508067. The next prime is 1020508103. The reversal of 1020508090 is 908050201.

1020508090 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14556 + ... + 47464.

It is an arithmetic number, because the mean of its divisors is an integer number (65754180).

Almost surely, 2^1020508090 is an apocalyptic number.

1020508090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020508090 is an abundant number, since it is smaller than the sum of its proper divisors (1083625670).

1020508090 is a wasteful number, since it uses less digits than its factorization.

1020508090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33366.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1020508090 is about 31945.3923125073. The cubic root of 1020508090 is about 1006.7898239499.

Adding to 1020508090 its reverse (908050201), we get a palindrome (1928558291).

The spelling of 1020508090 in words is "one billion, twenty million, five hundred eight thousand, ninety".