1020651008 has 40 divisors (see below), whose sum is σ = 2196192768. Its totient is φ = 471066624.

The previous prime is 1020650993. The next prime is 1020651017. The reversal of 1020651008 is 8001560201.

It is a super-3 number, since 3×1020651008³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70016 + ... + 83327.

Almost surely, 2^1020651008 is an apocalyptic number.

It is an amenable number.

1020651008 is an abundant number, since it is smaller than the sum of its proper divisors (1175541760).

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

1020651008 is an equidigital number, since it uses as much as digits as its factorization.

1020651008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153374 (or 153358 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1020651008 is about 31947.6291452120. The cubic root of 1020651008 is about 1006.8368206936.

The spelling of 1020651008 in words is "one billion, twenty million, six hundred fifty-one thousand, eight".