1420442208 has 144 divisors (see below), whose sum is σ = 4299474816. Its totient is φ = 443289600.

The previous prime is 1420442197. The next prime is 1420442213. The reversal of 1420442208 is 8022440241.

1420442208 is a `hidden beast` number, since 14 + 2 + 0 + 442 + 208 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1091158 + ... + 1092458.

It is an arithmetic number, because the mean of its divisors is an integer number (29857464).

Almost surely, 2^1420442208 is an apocalyptic number.

1420442208 is a gapful number since it is divisible by the number (18) 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 1420442208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2149737408).

1420442208 is an abundant number, since it is smaller than the sum of its proper divisors (2879032608).

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

1420442208 is a wasteful number, since it uses less digits than its factorization.

1420442208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557 (or 1546 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 1420442208 is about 37688.7543970347. The cubic root of 1420442208 is about 1124.1075280336.

Adding to 1420442208 its reverse (8022440241), we get a palindrome (9442882449).

The spelling of 1420442208 in words is "one billion, four hundred twenty million, four hundred forty-two thousand, two hundred eight".