1444544490 has 16 divisors (see below), whose sum is σ = 3466906848. Its totient is φ = 385211856.

The previous prime is 1444544473. The next prime is 1444544503. The reversal of 1444544490 is 944454441.

It is a happy 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, 24075712 + ... + 24075771.

It is an arithmetic number, because the mean of its divisors is an integer number (216681678).

Almost surely, 2^1444544490 is an apocalyptic number.

1444544490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1444544490 is an abundant number, since it is smaller than the sum of its proper divisors (2022362358).

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

1444544490 is a wasteful number, since it uses less digits than its factorization.

1444544490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48151493.

The product of its (nonzero) digits is 184320, while the sum is 39.

The square root of 1444544490 is about 38007.1636668668. The cubic root of 1444544490 is about 1130.4299118611.

The spelling of 1444544490 in words is "one billion, four hundred forty-four million, five hundred forty-four thousand, four hundred ninety".