1000807020 has 36 divisors (see below), whose sum is σ = 3035781840. Its totient is φ = 266881824.

The previous prime is 1000806991. The next prime is 1000807033. The reversal of 1000807020 is 207080001.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1000807020² = 2003229382562560800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1000806984 and 1000807002.

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 11 ways as a sum of consecutive naturals, for example, 2779840 + ... + 2780199.

Almost surely, 2^1000807020 is an apocalyptic number.

1000807020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000807020 is an abundant number, since it is smaller than the sum of its proper divisors (2034974820).

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

1000807020 is a wasteful number, since it uses less digits than its factorization.

1000807020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5560054 (or 5560049 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1000807020 is about 31635.5341348933. The cubic root of 1000807020 is about 1000.2689343345.

Adding to 1000807020 its reverse (207080001), we get a palindrome (1207887021).

The spelling of 1000807020 in words is "one billion, eight hundred seven thousand, twenty".