20933394 has 16 divisors (see below), whose sum is σ = 41912640. Its totient is φ = 6970160.

The previous prime is 20933333. The next prime is 20933399. The reversal of 20933394 is 49333902.

It is not an unprimeable number, because it can be changed into a prime (20933399) 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, 7912 + ... + 10220.

It is an arithmetic number, because the mean of its divisors is an integer number (2619540).

Almost surely, 2^20933394 is an apocalyptic number.

20933394 is an abundant number, since it is smaller than the sum of its proper divisors (20979246).

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

20933394 is a wasteful number, since it uses less digits than its factorization.

20933394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3825.

The product of its (nonzero) digits is 17496, while the sum is 33.

The square root of 20933394 is about 4575.3026129427. The cubic root of 20933394 is about 275.6004247401.

The spelling of 20933394 in words is "twenty million, nine hundred thirty-three thousand, three hundred ninety-four".