1022501340 has 384 divisors, whose sum is σ = 3999744000. Its totient is φ = 211444992.

The previous prime is 1022501323. The next prime is 1022501341. The reversal of 1022501340 is 431052201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022501341) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1651551 + ... + 1652169.

It is an arithmetic number, because the mean of its divisors is an integer number (10416000).

Almost surely, 2^1022501340 is an apocalyptic number.

1022501340 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 1022501340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1999872000).

1022501340 is an abundant number, since it is smaller than the sum of its proper divisors (2977242660).

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

1022501340 is a wasteful number, since it uses less digits than its factorization.

1022501340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 678 counting only the distinct ones).

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

The square root of 1022501340 is about 31976.5748634841. The cubic root of 1022501340 is about 1007.4448828388. Note that the first 3 decimals are identical.

Adding to 1022501340 its reverse (431052201), we get a palindrome (1453553541).

The spelling of 1022501340 in words is "one billion, twenty-two million, five hundred one thousand, three hundred forty".