20294274 has 128 divisors (see below), whose sum is σ = 56770560. Its totient is φ = 4665600.

The previous prime is 20294251. The next prime is 20294279. The reversal of 20294274 is 47249202.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20294279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 186132 + ... + 186240.

It is an arithmetic number, because the mean of its divisors is an integer number (443520).

Almost surely, 2^20294274 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20294274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28385280).

20294274 is an abundant number, since it is smaller than the sum of its proper divisors (36476286).

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

20294274 is a wasteful number, since it uses less digits than its factorization.

20294274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 20294274 is about 4504.9166473976. The cubic root of 20294274 is about 272.7665892611.

The spelling of 20294274 in words is "twenty million, two hundred ninety-four thousand, two hundred seventy-four".