1022923440 has 240 divisors, whose sum is σ = 4283225856. Its totient is φ = 212544000.

The previous prime is 1022923427. The next prime is 1022923477. The reversal of 1022923440 is 443292201.

1022923440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46215 + ... + 64665.

Almost surely, 2^1022923440 is an apocalyptic number.

1022923440 is a gapful number since it is divisible by the number (10) 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 1022923440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2141612928).

1022923440 is an abundant number, since it is smaller than the sum of its proper divisors (3260302416).

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

1022923440 is a wasteful number, since it uses less digits than its factorization.

1022923440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18488 (or 18479 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1022923440 is about 31983.1743265111. The cubic root of 1022923440 is about 1007.5834919427.

The spelling of 1022923440 in words is "one billion, twenty-two million, nine hundred twenty-three thousand, four hundred forty".