20894892 has 12 divisors (see below), whose sum is σ = 48754776. Its totient is φ = 6964960.

The previous prime is 20894869. The next prime is 20894911. The reversal of 20894892 is 29849802.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870609 + ... + 870632.

It is an arithmetic number, because the mean of its divisors is an integer number (4062898).

Almost surely, 2^20894892 is an apocalyptic number.

It is an amenable number.

20894892 is an abundant number, since it is smaller than the sum of its proper divisors (27859884).

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

20894892 is a wasteful number, since it uses less digits than its factorization.

20894892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741248 (or 1741246 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 20894892 is about 4571.0930859041. The cubic root of 20894892 is about 275.4313538959.

The spelling of 20894892 in words is "twenty million, eight hundred ninety-four thousand, eight hundred ninety-two".