1022565632 has 72 divisors (see below), whose sum is σ = 2240632800. Its totient is φ = 461895680.

The previous prime is 1022565619. The next prime is 1022565641. The reversal of 1022565632 is 2365652201.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 486119 + ... + 488217.

It is an arithmetic number, because the mean of its divisors is an integer number (31119900).

Almost surely, 2^1022565632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022565632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1120316400).

1022565632 is an abundant number, since it is smaller than the sum of its proper divisors (1218067168).

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

1022565632 is a wasteful number, since it uses less digits than its factorization.

1022565632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299 (or 2285 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1022565632 is about 31977.5801460961. The cubic root of 1022565632 is about 1007.4659974937.

It can be divided in two parts, 10225 and 65632, that added together give a palindrome (75857).

The spelling of 1022565632 in words is "one billion, twenty-two million, five hundred sixty-five thousand, six hundred thirty-two".