20658002 has 16 divisors (see below), whose sum is σ = 32432832. Its totient is φ = 9849840.

The previous prime is 20657999. The next prime is 20658037. The reversal of 20658002 is 20085602.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 24752 + ... + 25572.

It is an arithmetic number, because the mean of its divisors is an integer number (2027052).

Almost surely, 2^20658002 is an apocalyptic number.

20658002 is a deficient number, since it is larger than the sum of its proper divisors (11774830).

20658002 is a wasteful number, since it uses less digits than its factorization.

20658002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 20658002 is about 4545.1074794772. The cubic root of 20658002 is about 274.3865200477.

The spelling of 20658002 in words is "twenty million, six hundred fifty-eight thousand, two".