922112640 has 512 divisors, whose sum is σ = 3586809600. Its totient is φ = 222953472.

The previous prime is 922112621. The next prime is 922112651. The reversal of 922112640 is 46211229.

922112640 is a `hidden beast` number, since 9 + 2 + 2 + 1 + 12 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12631644 + ... + 12631716.

Almost surely, 2^922112640 is an apocalyptic number.

922112640 is a gapful number since it is divisible by the number (90) 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 922112640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1793404800).

922112640 is an abundant number, since it is smaller than the sum of its proper divisors (2664696960).

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

922112640 is a wasteful number, since it uses less digits than its factorization.

922112640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 922112640 is about 30366.3076451517. The cubic root of 922112640 is about 973.3327245049.

Adding to 922112640 its reverse (46211229), we get a palindrome (968323869).

The spelling of 922112640 in words is "nine hundred twenty-two million, one hundred twelve thousand, six hundred forty".