1444222040 has 32 divisors (see below), whose sum is σ = 3361554000. Its totient is φ = 557768064.

The previous prime is 1444222033. The next prime is 1444222081. The reversal of 1444222040 is 402224441.

It is a junction number, because it is equal to n+sod(n) for n = 1444221997 and 1444222015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621350 + ... + 623669.

Almost surely, 2^1444222040 is an apocalyptic number.

1444222040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444222040 is an abundant number, since it is smaller than the sum of its proper divisors (1917331960).

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

1444222040 is a wasteful number, since it uses less digits than its factorization.

1444222040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245059 (or 1245055 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1444222040 is about 38002.9214666452. The cubic root of 1444222040 is about 1130.3457943988.

Adding to 1444222040 its reverse (402224441), we get a palindrome (1846446481).

The spelling of 1444222040 in words is "one billion, four hundred forty-four million, two hundred twenty-two thousand, forty".