1022256664 has 48 divisors (see below), whose sum is σ = 2264229720. Its totient is φ = 428912640.

The previous prime is 1022256661. The next prime is 1022256701. The reversal of 1022256664 is 4666522201.

It is a super-3 number, since 3×1022256664³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022256661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19497 + ... + 49240.

Almost surely, 2^1022256664 is an apocalyptic number.

It is an amenable number.

1022256664 is an abundant number, since it is smaller than the sum of its proper divisors (1241973056).

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

1022256664 is a wasteful number, since it uses less digits than its factorization.

1022256664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68780 (or 68763 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1022256664 is about 31972.7487714147. The cubic root of 1022256664 is about 1007.3645187230.

Adding to 1022256664 its reverse (4666522201), we get a palindrome (5688778865).

The spelling of 1022256664 in words is "one billion, twenty-two million, two hundred fifty-six thousand, six hundred sixty-four".