20741746 has 8 divisors (see below), whose sum is σ = 31138560. Its totient is φ = 10362228.

The previous prime is 20741731. The next prime is 20741753. The reversal of 20741746 is 64714702.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726 + ... + 6481.

It is an arithmetic number, because the mean of its divisors is an integer number (3892320).

Almost surely, 2^20741746 is an apocalyptic number.

20741746 is a deficient number, since it is larger than the sum of its proper divisors (10396814).

20741746 is a wasteful number, since it uses less digits than its factorization.

20741746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8648.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 20741746 is about 4554.3107052550. The cubic root of 20741746 is about 274.7567921348.

The spelling of 20741746 in words is "twenty million, seven hundred forty-one thousand, seven hundred forty-six".