20020146 has 16 divisors (see below), whose sum is σ = 40101600. Its totient is φ = 6663168.

The previous prime is 20020109. The next prime is 20020151. The reversal of 20020146 is 64102002.

It is a super-2 number, since 2×20020146² = 801612491722632, which contains 22 as substring.

It is a Curzon 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, 2445 + ... + 6783.

It is an arithmetic number, because the mean of its divisors is an integer number (2506350).

Almost surely, 2^20020146 is an apocalyptic number.

20020146 is an abundant number, since it is smaller than the sum of its proper divisors (20081454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20020146 is a wasteful number, since it uses less digits than its factorization.

20020146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20020146 is about 4474.3877793504. The cubic root of 20020146 is about 271.5328721700.

Adding to 20020146 its reverse (64102002), we get a palindrome (84122148).

The spelling of 20020146 in words is "twenty million, twenty thousand, one hundred forty-six".