100869020 has 48 divisors (see below), whose sum is σ = 248004288. Its totient is φ = 33738240.

The previous prime is 100869019. The next prime is 100869023. The reversal of 100869020 is 20968001.

100869020 = 57² + 58² + ... + 671².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100869023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3047 + ... + 14526.

It is an arithmetic number, because the mean of its divisors is an integer number (5166756).

Almost surely, 2^100869020 is an apocalyptic number.

100869020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100869020 is an abundant number, since it is smaller than the sum of its proper divisors (147135268).

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

100869020 is a wasteful number, since it uses less digits than its factorization.

100869020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17630 (or 17628 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 100869020 is about 10043.3570084907. The cubic root of 100869020 is about 465.4995517791.

The spelling of 100869020 in words is "one hundred million, eight hundred sixty-nine thousand, twenty".