920569056 has 192 divisors, whose sum is σ = 2771822592. Its totient is φ = 264960000.

The previous prime is 920569037. The next prime is 920569073. The reversal of 920569056 is 650965029.

It is a super-2 number, since 2×920569056² = 1694894773729462272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 920568999 and 920569017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1996666 + ... + 1997126.

It is an arithmetic number, because the mean of its divisors is an integer number (14436576).

Almost surely, 2^920569056 is an apocalyptic number.

920569056 is a gapful number since it is divisible by the number (96) 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 920569056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1385911296).

920569056 is an abundant number, since it is smaller than the sum of its proper divisors (1851253536).

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

920569056 is a wasteful number, since it uses less digits than its factorization.

920569056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 920569056 is about 30340.8809364527. The cubic root of 920569056 is about 972.7893129705.

The spelling of 920569056 in words is "nine hundred twenty million, five hundred sixty-nine thousand, fifty-six".