20410812 has 48 divisors (see below), whose sum is σ = 56034720. Its totient is φ = 6402816.

The previous prime is 20410801. The next prime is 20410823. The reversal of 20410812 is 21801402.

It is an interprime number because it is at equal distance from previous prime (20410801) and next prime (20410823).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3723 + ... + 7394.

It is an arithmetic number, because the mean of its divisors is an integer number (1167390).

Almost surely, 2^20410812 is an apocalyptic number.

It is an amenable number.

20410812 is an abundant number, since it is smaller than the sum of its proper divisors (35623908).

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

20410812 is a wasteful number, since it uses less digits than its factorization.

20410812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11147 (or 11139 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 20410812 is about 4517.8326662239. The cubic root of 20410812 is about 273.2877053852.

The spelling of 20410812 in words is "twenty million, four hundred ten thousand, eight hundred twelve".