20743294 has 64 divisors (see below), whose sum is σ = 39372480. Its totient is φ = 8064000.

The previous prime is 20743271. The next prime is 20743337. The reversal of 20743294 is 49234702.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 340024 + ... + 340084.

It is an arithmetic number, because the mean of its divisors is an integer number (615195).

Almost surely, 2^20743294 is an apocalyptic number.

20743294 is a deficient number, since it is larger than the sum of its proper divisors (18629186).

20743294 is a wasteful number, since it uses less digits than its factorization.

20743294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 20743294 is about 4554.4806509634. The cubic root of 20743294 is about 274.7636271899.

Adding to 20743294 its reverse (49234702), we get a palindrome (69977996).

The spelling of 20743294 in words is "twenty million, seven hundred forty-three thousand, two hundred ninety-four".