20162620 has 12 divisors (see below), whose sum is σ = 42341544. Its totient is φ = 8065040.

The previous prime is 20162587. The next prime is 20162633. The reversal of 20162620 is 2626102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504046 + ... + 504085.

It is an arithmetic number, because the mean of its divisors is an integer number (3528462).

Almost surely, 2^20162620 is an apocalyptic number.

20162620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20162620 is an abundant number, since it is smaller than the sum of its proper divisors (22178924).

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

20162620 is a wasteful number, since it uses less digits than its factorization.

20162620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008140 (or 1008138 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20162620 is about 4490.2806148391. The cubic root of 20162620 is about 272.1754742870.

Adding to 20162620 its reverse (2626102), we get a palindrome (22788722).

The spelling of 20162620 in words is "twenty million, one hundred sixty-two thousand, six hundred twenty".