20246100 has 144 divisors (see below), whose sum is σ = 69328896. Its totient is φ = 4464000.

The previous prime is 20246081. The next prime is 20246101. The reversal of 20246100 is 164202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20246100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20246101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64945 + ... + 65255.

Almost surely, 2^20246100 is an apocalyptic number.

20246100 is a gapful number since it is divisible by the number (20) 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 20246100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34664448).

20246100 is an abundant number, since it is smaller than the sum of its proper divisors (49082796).

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

20246100 is a wasteful number, since it uses less digits than its factorization.

20246100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20246100 is about 4499.5666458005. The cubic root of 20246100 is about 272.5505896031.

The spelling of 20246100 in words is "twenty million, two hundred forty-six thousand, one hundred".