1444542100 has 36 divisors (see below), whose sum is σ = 3136333984. Its totient is φ = 577507680.

The previous prime is 1444542067. The next prime is 1444542103. The reversal of 1444542100 is 12454441.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444542103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314017 + ... + 318583.

Almost surely, 2^1444542100 is an apocalyptic number.

1444542100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444542100 is an abundant number, since it is smaller than the sum of its proper divisors (1691791884).

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

1444542100 is a wasteful number, since it uses less digits than its factorization.

1444542100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7744 (or 7737 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1444542100 is about 38007.1322254126. The cubic root of 1444542100 is about 1130.4292884284.

Adding to 1444542100 its reverse (12454441), we get a palindrome (1456996541).

The spelling of 1444542100 in words is "one billion, four hundred forty-four million, five hundred forty-two thousand, one hundred".