1001422444 has 48 divisors (see below), whose sum is σ = 1944633600. Its totient is φ = 447445440.

The previous prime is 1001422441. The next prime is 1001422447. The reversal of 1001422444 is 4442241001.

It is an interprime number because it is at equal distance from previous prime (1001422441) and next prime (1001422447).

It is a super-2 number, since 2×1001422444² = 2005693822693866272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1001422441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 674527 + ... + 676009.

It is an arithmetic number, because the mean of its divisors is an integer number (40513200).

Almost surely, 2^1001422444 is an apocalyptic number.

It is an amenable number.

1001422444 is a deficient number, since it is larger than the sum of its proper divisors (943211156).

1001422444 is a wasteful number, since it uses less digits than its factorization.

1001422444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750 (or 1748 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1001422444 is about 31645.2594238063. The cubic root of 1001422444 is about 1000.4739233612.

Adding to 1001422444 its reverse (4442241001), we get a palindrome (5443663445).

The spelling of 1001422444 in words is "one billion, one million, four hundred twenty-two thousand, four hundred forty-four".