20396376 has 192 divisors, whose sum is σ = 74430720. Its totient is φ = 4872960.

The previous prime is 20396339. The next prime is 20396381. The reversal of 20396376 is 67369302.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20396376.

It is a congruent number.

It is an unprimeable number.

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, 71931 + ... + 72213.

It is an arithmetic number, because the mean of its divisors is an integer number (387660).

Almost surely, 2^20396376 is an apocalyptic number.

20396376 is a gapful number since it is divisible by the number (26) 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 20396376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37215360).

20396376 is an abundant number, since it is smaller than the sum of its proper divisors (54034344).

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

20396376 is a wasteful number, since it uses less digits than its factorization.

20396376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 20396376 is about 4516.2347148925. The cubic root of 20396376 is about 273.2232605902.

The spelling of 20396376 in words is "twenty million, three hundred ninety-six thousand, three hundred seventy-six".