20900376 has 128 divisors (see below), whose sum is σ = 69350400. Its totient is φ = 5702400.

The previous prime is 20900371. The next prime is 20900377. The reversal of 20900376 is 67300902.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20900371) 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 31 ways as a sum of consecutive naturals, for example, 34476 + ... + 35076.

It is an arithmetic number, because the mean of its divisors is an integer number (541800).

Almost surely, 2^20900376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20900376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34675200).

20900376 is an abundant number, since it is smaller than the sum of its proper divisors (48450024).

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

20900376 is a wasteful number, since it uses less digits than its factorization.

20900376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 20900376 is about 4571.6929030721. The cubic root of 20900376 is about 275.4554480369.

The spelling of 20900376 in words is "twenty million, nine hundred thousand, three hundred seventy-six".