20764246 has 8 divisors (see below), whose sum is σ = 31392000. Its totient is φ = 10300248.

The previous prime is 20764243. The next prime is 20764297. The reversal of 20764246 is 64246702.

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 (20764243) 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, 40621 + ... + 41128.

It is an arithmetic number, because the mean of its divisors is an integer number (3924000).

Almost surely, 2^20764246 is an apocalyptic number.

20764246 is a deficient number, since it is larger than the sum of its proper divisors (10627754).

20764246 is a wasteful number, since it uses less digits than its factorization.

20764246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81878.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 20764246 is about 4556.7802229206. The cubic root of 20764246 is about 274.8561054361.

The spelling of 20764246 in words is "twenty million, seven hundred sixty-four thousand, two hundred forty-six".