1022663320 has 48 divisors (see below), whose sum is σ = 2676669840. Its totient is φ = 350626752.

The previous prime is 1022663273. The next prime is 1022663321. The reversal of 1022663320 is 233662201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022663321) 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, 258924 + ... + 262843.

It is an arithmetic number, because the mean of its divisors is an integer number (55763955).

Almost surely, 2^1022663320 is an apocalyptic number.

1022663320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022663320 is an abundant number, since it is smaller than the sum of its proper divisors (1654006520).

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

1022663320 is a wasteful number, since it uses less digits than its factorization.

1022663320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521792 (or 521781 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1022663320 is about 31979.1075547771. The cubic root of 1022663320 is about 1007.4980783048.

The spelling of 1022663320 in words is "one billion, twenty-two million, six hundred sixty-three thousand, three hundred twenty".