20894316 has 24 divisors (see below), whose sum is σ = 48834240. Its totient is φ = 6953232.

The previous prime is 20894311. The next prime is 20894329. The reversal of 20894316 is 61349802.

It is a super-2 number, since 2×20894316² = 873144882215712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20894311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9295 + ... + 11321.

It is an arithmetic number, because the mean of its divisors is an integer number (2034760).

Almost surely, 2^20894316 is an apocalyptic number.

It is an amenable number.

20894316 is an abundant number, since it is smaller than the sum of its proper divisors (27939924).

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

20894316 is a wasteful number, since it uses less digits than its factorization.

20894316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893 (or 2891 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 20894316 is about 4571.0300808461. The cubic root of 20894316 is about 275.4288229756.

The spelling of 20894316 in words is "twenty million, eight hundred ninety-four thousand, three hundred sixteen".