20476716 has 72 divisors (see below), whose sum is σ = 54109440. Its totient is φ = 6012864.

The previous prime is 20476667. The next prime is 20476723. The reversal of 20476716 is 61767402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46425 + ... + 46863.

It is an arithmetic number, because the mean of its divisors is an integer number (751520).

Almost surely, 2^20476716 is an apocalyptic number.

20476716 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 20476716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27054720).

20476716 is an abundant number, since it is smaller than the sum of its proper divisors (33632724).

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

20476716 is a wasteful number, since it uses less digits than its factorization.

20476716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 20476716 is about 4525.1205508804. The cubic root of 20476716 is about 273.5815268298.

The spelling of 20476716 in words is "twenty million, four hundred seventy-six thousand, seven hundred sixteen".