1021050880 has 152 divisors (see below), whose sum is σ = 2642406480. Its totient is φ = 377487360.

The previous prime is 1021050857. The next prime is 1021050887. The reversal of 1021050880 is 880501201.

It is a tau number, because it is divible by the number of its divisors (152).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021050887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24903660 + ... + 24903700.

Almost surely, 2^1021050880 is an apocalyptic number.

1021050880 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 1021050880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321203240).

1021050880 is an abundant number, since it is smaller than the sum of its proper divisors (1621355600).

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

1021050880 is an frugal number, since it uses more digits than its factorization.

1021050880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 1021050880 is about 31953.8867745381. The cubic root of 1021050880 is about 1006.9682901459.

The spelling of 1021050880 in words is "one billion, twenty-one million, fifty thousand, eight hundred eighty".