1420422220 has 48 divisors (see below), whose sum is σ = 3421776960. Its totient is φ = 485178624.

The previous prime is 1420422217. The next prime is 1420422251. The reversal of 1420422220 is 222240241.

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, 18802 + ... + 56518.

It is an arithmetic number, because the mean of its divisors is an integer number (71287020).

Almost surely, 2^1420422220 is an apocalyptic number.

1420422220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420422220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1710888480).

1420422220 is an abundant number, since it is smaller than the sum of its proper divisors (2001354740).

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

1420422220 is a wasteful number, since it uses less digits than its factorization.

1420422220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38002 (or 38000 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 1420422220 is about 37688.4892241650. The cubic root of 1420422220 is about 1124.1022553172.

Adding to 1420422220 its reverse (222240241), we get a palindrome (1642662461).

The spelling of 1420422220 in words is "one billion, four hundred twenty million, four hundred twenty-two thousand, two hundred twenty".