1020720050 has 24 divisors (see below), whose sum is σ = 2169759936. Its totient is φ = 349961040.

The previous prime is 1020720049. The next prime is 1020720061. The reversal of 1020720050 is 500270201.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1457822 + ... + 1458521.

It is an arithmetic number, because the mean of its divisors is an integer number (90406664).

Almost surely, 2^1020720050 is an apocalyptic number.

1020720050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020720050 is an abundant number, since it is smaller than the sum of its proper divisors (1149039886).

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

1020720050 is a wasteful number, since it uses less digits than its factorization.

1020720050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916362 (or 2916357 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 1020720050 is about 31948.7096766051. The cubic root of 1020720050 is about 1006.8595226946.

Adding to 1020720050 its reverse (500270201), we get a palindrome (1520990251).

The spelling of 1020720050 in words is "one billion, twenty million, seven hundred twenty thousand, fifty".