1021340250 has 192 divisors, whose sum is σ = 3323324160. Its totient is φ = 221097600.

The previous prime is 1021340213. The next prime is 1021340261. The reversal of 1021340250 is 520431201.

1021340250 is a `hidden beast` number, since 1 + 0 + 213 + 402 + 50 = 666.

1021340250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 297544 + ... + 300956.

It is an arithmetic number, because the mean of its divisors is an integer number (17308980).

Almost surely, 2^1021340250 is an apocalyptic number.

1021340250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021340250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1661662080).

1021340250 is an abundant number, since it is smaller than the sum of its proper divisors (2301983910).

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

1021340250 is a wasteful number, since it uses less digits than its factorization.

1021340250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3462 (or 3449 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1021340250 is about 31958.4143849472. The cubic root of 1021340250 is about 1007.0634074730.

Adding to 1021340250 its reverse (520431201), we get a palindrome (1541771451).

The spelling of 1021340250 in words is "one billion, twenty-one million, three hundred forty thousand, two hundred fifty".