100900620 has 96 divisors (see below), whose sum is σ = 319334400. Its totient is φ = 26442432.

The previous prime is 100900619. The next prime is 100900633. The reversal of 100900620 is 26009001.

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

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 100900593 and 100900602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30277 + ... + 33443.

It is an arithmetic number, because the mean of its divisors is an integer number (3326400).

Almost surely, 2^100900620 is an apocalyptic number.

100900620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100900620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159667200).

100900620 is an abundant number, since it is smaller than the sum of its proper divisors (218433780).

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

100900620 is a wasteful number, since it uses less digits than its factorization.

100900620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244 (or 3236 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 100900620 is about 10044.9300644654. The cubic root of 100900620 is about 465.5481568911.

Adding to 100900620 its reverse (26009001), we get a palindrome (126909621).

The spelling of 100900620 in words is "one hundred million, nine hundred thousand, six hundred twenty".