1022520540 has 24 divisors (see below), whose sum is σ = 2863057680. Its totient is φ = 272672128.

The previous prime is 1022520533. The next prime is 1022520571. The reversal of 1022520540 is 450252201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8520945 + ... + 8521064.

It is an arithmetic number, because the mean of its divisors is an integer number (119294070).

Almost surely, 2^1022520540 is an apocalyptic number.

1022520540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022520540 is an abundant number, since it is smaller than the sum of its proper divisors (1840537140).

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

1022520540 is a wasteful number, since it uses less digits than its factorization.

1022520540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17042021 (or 17042019 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1022520540 is about 31976.8750818463. The cubic root of 1022520540 is about 1007.4511885585.

Adding to 1022520540 its reverse (450252201), we get a palindrome (1472772741).

The spelling of 1022520540 in words is "one billion, twenty-two million, five hundred twenty thousand, five hundred forty".