1420051620 has 48 divisors (see below), whose sum is σ = 4282004160. Its totient is φ = 349550976.

The previous prime is 1420051537. The next prime is 1420051637. The reversal of 1420051620 is 261500241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 909510 + ... + 911069.

It is an arithmetic number, because the mean of its divisors is an integer number (89208420).

Almost surely, 2^1420051620 is an apocalyptic number.

1420051620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420051620 is an abundant number, since it is smaller than the sum of its proper divisors (2861952540).

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

1420051620 is a wasteful number, since it uses less digits than its factorization.

1420051620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820604 (or 1820602 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1420051620 is about 37683.5722828927. The cubic root of 1420051620 is about 1124.0044842634.

Adding to 1420051620 its reverse (261500241), we get a palindrome (1681551861).

The spelling of 1420051620 in words is "one billion, four hundred twenty million, fifty-one thousand, six hundred twenty".