20702774 has 8 divisors (see below), whose sum is σ = 31169568. Its totient is φ = 10312920.

The previous prime is 20702771. The next prime is 20702777. The reversal of 20702774 is 47720702.

It is an interprime number because it is at equal distance from previous prime (20702771) and next prime (20702777).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20702771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18557 + ... + 19640.

It is an arithmetic number, because the mean of its divisors is an integer number (3896196).

Almost surely, 2^20702774 is an apocalyptic number.

20702774 is a deficient number, since it is larger than the sum of its proper divisors (10466794).

20702774 is a wasteful number, since it uses less digits than its factorization.

20702774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38470.

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 20702774 is about 4550.0301097905. The cubic root of 20702774 is about 274.5846025953.

The spelling of 20702774 in words is "twenty million, seven hundred two thousand, seven hundred seventy-four".