20502662 has 8 divisors (see below), whose sum is σ = 31585296. Its totient is φ = 9974232.

The previous prime is 20502641. The next prime is 20502667. The reversal of 20502662 is 26620502.

It is a happy number.

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 (20502667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138458 + ... + 138605.

It is an arithmetic number, because the mean of its divisors is an integer number (3948162).

Almost surely, 2^20502662 is an apocalyptic number.

20502662 is a deficient number, since it is larger than the sum of its proper divisors (11082634).

20502662 is a wasteful number, since it uses less digits than its factorization.

20502662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277102.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 20502662 is about 4527.9865282485. The cubic root of 20502662 is about 273.6970295680.

The spelling of 20502662 in words is "twenty million, five hundred two thousand, six hundred sixty-two".