1444430020 has 48 divisors (see below), whose sum is σ = 3315816000. Its totient is φ = 524174720.

The previous prime is 1444430011. The next prime is 1444430021. The reversal of 1444430020 is 200344441.

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

It is a junction number, because it is equal to n+sod(n) for n = 1444429973 and 1444430000.

It is not an unprimeable number, because it can be changed into a prime (1444430021) 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, 105531 + ... + 118429.

It is an arithmetic number, because the mean of its divisors is an integer number (69079500).

Almost surely, 2^1444430020 is an apocalyptic number.

1444430020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444430020 is an abundant number, since it is smaller than the sum of its proper divisors (1871385980).

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

1444430020 is a wasteful number, since it uses less digits than its factorization.

1444430020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13428 (or 13426 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1444430020 is about 38005.6577367107. The cubic root of 1444430020 is about 1130.4000515301.

Adding to 1444430020 its reverse (200344441), we get a palindrome (1644774461).

The spelling of 1444430020 in words is "one billion, four hundred forty-four million, four hundred thirty thousand, twenty".