1417220805 has 128 divisors (see below), whose sum is σ = 3128057856. Its totient is φ = 528768000.

The previous prime is 1417220743. The next prime is 1417220821. The reversal of 1417220805 is 5080227141.

It is not a de Polignac number, because 1417220805 - 2¹⁰ = 1417219781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 554280 + ... + 556830.

It is an arithmetic number, because the mean of its divisors is an integer number (24437952).

Almost surely, 2^1417220805 is an apocalyptic number.

1417220805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1417220805 is an abundant number, since it is smaller than the sum of its proper divisors (1710837051).

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

1417220805 is a wasteful number, since it uses less digits than its factorization.

1417220805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2627.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 1417220805 is about 37645.9932130898. The cubic root of 1417220805 is about 1123.2571017154.

Adding to 1417220805 its reverse (5080227141), we get a palindrome (6497447946).

It can be divided in two parts, 1417 and 220805, that added together give a palindrome (222222).

The spelling of 1417220805 in words is "one billion, four hundred seventeen million, two hundred twenty thousand, eight hundred five".