1444522420 has 48 divisors (see below), whose sum is σ = 3371735808. Its totient is φ = 515365760.

The previous prime is 1444522403. The next prime is 1444522427. The reversal of 1444522420 is 242254441.

It is a super-3 number, since 3×1444522420³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444522427) 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, 50284 + ... + 73603.

It is an arithmetic number, because the mean of its divisors is an integer number (70244496).

Almost surely, 2^1444522420 is an apocalyptic number.

1444522420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444522420 is an abundant number, since it is smaller than the sum of its proper divisors (1927213388).

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

1444522420 is a wasteful number, since it uses less digits than its factorization.

1444522420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123960 (or 123958 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 1444522420 is about 38006.8733257552. The cubic root of 1444522420 is about 1130.4241548641.

Adding to 1444522420 its reverse (242254441), we get a palindrome (1686776861).

The spelling of 1444522420 in words is "one billion, four hundred forty-four million, five hundred twenty-two thousand, four hundred twenty".