1022344440 has 128 divisors (see below), whose sum is σ = 3318658560. Its totient is φ = 250458624.

The previous prime is 1022344439. The next prime is 1022344459. The reversal of 1022344440 is 444432201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1022344440.

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, 352677 + ... + 355563.

It is an arithmetic number, because the mean of its divisors is an integer number (25927020).

Almost surely, 2^1022344440 is an apocalyptic number.

1022344440 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 1022344440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1659329280).

1022344440 is an abundant number, since it is smaller than the sum of its proper divisors (2296314120).

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

1022344440 is a wasteful number, since it uses less digits than its factorization.

1022344440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141 (or 3137 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1022344440 is about 31974.1214109160. The cubic root of 1022344440 is about 1007.3933503268.

Adding to 1022344440 its reverse (444432201), we get a palindrome (1466776641).

The spelling of 1022344440 in words is "one billion, twenty-two million, three hundred forty-four thousand, four hundred forty".