20051412 has 48 divisors (see below), whose sum is σ = 48840960. Its totient is φ = 6394752.

The previous prime is 20051411. The next prime is 20051431. The reversal of 20051412 is 21415002.

It is a junction number, because it is equal to n+sod(n) for n = 20051391 and 20051400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20051411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54453 + ... + 54819.

It is an arithmetic number, because the mean of its divisors is an integer number (1017520).

Almost surely, 2^20051412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20051412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24420480).

20051412 is an abundant number, since it is smaller than the sum of its proper divisors (28789548).

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

20051412 is a wasteful number, since it uses less digits than its factorization.

20051412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 20051412 is about 4477.8803021072. The cubic root of 20051412 is about 271.6741520430.

Adding to 20051412 its reverse (21415002), we get a palindrome (41466414).

The spelling of 20051412 in words is "twenty million, fifty-one thousand, four hundred twelve".