1022142444 has 12 divisors (see below), whose sum is σ = 2384999064. Its totient is φ = 340714144.

The previous prime is 1022142437. The next prime is 1022142467. The reversal of 1022142444 is 4442412201.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42589257 + ... + 42589280.

It is an arithmetic number, because the mean of its divisors is an integer number (198749922).

Almost surely, 2^1022142444 is an apocalyptic number.

It is an amenable number.

1022142444 is an abundant number, since it is smaller than the sum of its proper divisors (1362856620).

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

1022142444 is a wasteful number, since it uses less digits than its factorization.

1022142444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85178544 (or 85178542 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1022142444 is about 31970.9625128803. The cubic root of 1022142444 is about 1007.3269986412.

Adding to 1022142444 its reverse (4442412201), we get a palindrome (5464554645).

The spelling of 1022142444 in words is "one billion, twenty-two million, one hundred forty-two thousand, four hundred forty-four".