20694236 has 24 divisors (see below), whose sum is σ = 39586176. Its totient is φ = 9423360.

The previous prime is 20694229. The next prime is 20694239. The reversal of 20694236 is 63249602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20694239) 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, 2801 + ... + 7016.

It is an arithmetic number, because the mean of its divisors is an integer number (1649424).

Almost surely, 2^20694236 is an apocalyptic number.

It is an amenable number.

20694236 is a deficient number, since it is larger than the sum of its proper divisors (18891940).

20694236 is a wasteful number, since it uses less digits than its factorization.

20694236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9869 (or 9867 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 20694236 is about 4549.0917774870. The cubic root of 20694236 is about 274.5468503969.

The spelling of 20694236 in words is "twenty million, six hundred ninety-four thousand, two hundred thirty-six".