1420620450 has 48 divisors (see below), whose sum is σ = 3529300896. Its totient is φ = 378169600.

The previous prime is 1420620407. The next prime is 1420620457. The reversal of 1420620450 is 540260241.

It is a self number, because there is not a number n which added to its sum of digits gives 1420620450.

It is not an unprimeable number, because it can be changed into a prime (1420620457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80965 + ... + 96935.

It is an arithmetic number, because the mean of its divisors is an integer number (73527102).

Almost surely, 2^1420620450 is an apocalyptic number.

1420620450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420620450 is an abundant number, since it is smaller than the sum of its proper divisors (2108680446).

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

1420620450 is a wasteful number, since it uses less digits than its factorization.

1420620450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16579 (or 16574 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1420620450 is about 37691.1189804707. The cubic root of 1420620450 is about 1124.1545450335.

Adding to 1420620450 its reverse (540260241), we get a palindrome (1960880691).

The spelling of 1420620450 in words is "one billion, four hundred twenty million, six hundred twenty thousand, four hundred fifty".