20099662 has 16 divisors (see below), whose sum is σ = 33656832. Its totient is φ = 8923320.

The previous prime is 20099633. The next prime is 20099689. The reversal of 20099662 is 26699002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9678 + ... + 11569.

It is an arithmetic number, because the mean of its divisors is an integer number (2103552).

Almost surely, 2^20099662 is an apocalyptic number.

20099662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20099662 is a deficient number, since it is larger than the sum of its proper divisors (13557170).

20099662 is a wasteful number, since it uses less digits than its factorization.

20099662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21303.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 20099662 is about 4483.2646587058. The cubic root of 20099662 is about 271.8918886237.

The spelling of 20099662 in words is "twenty million, ninety-nine thousand, six hundred sixty-two".