100070020 has 24 divisors (see below), whose sum is σ = 210518784. Its totient is φ = 39957216.

The previous prime is 100069997. The next prime is 100070021. The reversal of 100070020 is 20070001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 100069979 and 100070006.

It is not an unprimeable number, because it can be changed into a prime (100070021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8019 + ... + 16261.

It is an arithmetic number, because the mean of its divisors is an integer number (8771616).

Almost surely, 2^100070020 is an apocalyptic number.

100070020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100070020 is an abundant number, since it is smaller than the sum of its proper divisors (110448764).

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

100070020 is a wasteful number, since it uses less digits than its factorization.

100070020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8859 (or 8857 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 10.

The square root of 100070020 is about 10003.5003873644. The cubic root of 100070020 is about 464.2671927692.

The spelling of 100070020 in words is "one hundred million, seventy thousand, twenty".