20050470 has 128 divisors (see below), whose sum is σ = 60065280. Its totient is φ = 4717440.

The previous prime is 20050469. The next prime is 20050493. The reversal of 20050470 is 7405002.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 127632 + ... + 127788.

It is an arithmetic number, because the mean of its divisors is an integer number (469260).

Almost surely, 2^20050470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20050470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30032640).

20050470 is an abundant number, since it is smaller than the sum of its proper divisors (40014810).

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

20050470 is a wasteful number, since it uses less digits than its factorization.

20050470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 20050470 is about 4477.7751171759. The cubic root of 20050470 is about 271.6698976284.

Adding to 20050470 its reverse (7405002), we get a palindrome (27455472).

The spelling of 20050470 in words is "twenty million, fifty thousand, four hundred seventy".