620090100 has 432 divisors, whose sum is σ = 2394638400. Its totient is φ = 137168640.

The previous prime is 620090083. The next prime is 620090101. The reversal of 620090100 is 1090026.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620090101) by changing a digit.

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 143 ways as a sum of consecutive naturals, for example, 5688846 + ... + 5688954.

Almost surely, 2^620090100 is an apocalyptic number.

620090100 is a gapful number since it is divisible by the number (60) 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 620090100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197319200).

620090100 is an abundant number, since it is smaller than the sum of its proper divisors (1774548300).

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

620090100 is a wasteful number, since it uses less digits than its factorization.

620090100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 169 counting only the distinct ones).

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

The square root of 620090100 is about 24901.6083817893. The cubic root of 620090100 is about 852.7432019409.

The spelling of 620090100 in words is "six hundred twenty million, ninety thousand, one hundred".