1420441280 has 56 divisors (see below), whose sum is σ = 3391418160. Its totient is φ = 566666240.

The previous prime is 1420441277. The next prime is 1420441331. The reversal of 1420441280 is 821440241.

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 7 ways as a sum of consecutive naturals, for example, 118775 + ... + 130185.

Almost surely, 2^1420441280 is an apocalyptic number.

1420441280 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 1420441280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1695709080).

1420441280 is an abundant number, since it is smaller than the sum of its proper divisors (1970976880).

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

1420441280 is a wasteful number, since it uses less digits than its factorization.

1420441280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11817 (or 11807 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 1420441280 is about 37688.7420856680. The cubic root of 1420441280 is about 1124.1072832337.

The spelling of 1420441280 in words is "one billion, four hundred twenty million, four hundred forty-one thousand, two hundred eighty".