1000652020 has 12 divisors (see below), whose sum is σ = 2101369284. Its totient is φ = 400260800.

The previous prime is 1000652017. The next prime is 1000652021. The reversal of 1000652020 is 202560001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 408605796 + 592046224 = 20214^2 + 24332^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1000651985 and 1000652003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000652021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25016281 + ... + 25016320.

It is an arithmetic number, because the mean of its divisors is an integer number (175114107).

Almost surely, 2^1000652020 is an apocalyptic number.

1000652020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000652020 is an abundant number, since it is smaller than the sum of its proper divisors (1100717264).

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

1000652020 is a wasteful number, since it uses less digits than its factorization.

1000652020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50032610 (or 50032608 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1000652020 is about 31633.0842631571. The cubic root of 1000652020 is about 1000.2172927804.

It can be divided in two parts, 10006 and 52020, that added together give a palindrome (62026).

The spelling of 1000652020 in words is "one billion, six hundred fifty-two thousand, twenty".