1444285730 has 16 divisors (see below), whose sum is σ = 2600731584. Its totient is φ = 577488240.

The previous prime is 1444285727. The next prime is 1444285747. The reversal of 1444285730 is 375824441.

It is a super-2 number, since 2×1444285730² = 4171922539763265800, which contains 22 as substring.

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, 86 + ... + 53745.

It is an arithmetic number, because the mean of its divisors is an integer number (162545724).

Almost surely, 2^1444285730 is an apocalyptic number.

1444285730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1444285730 is a deficient number, since it is larger than the sum of its proper divisors (1156445854).

1444285730 is a wasteful number, since it uses less digits than its factorization.

1444285730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56521.

The product of its (nonzero) digits is 107520, while the sum is 38.

The square root of 1444285730 is about 38003.7594192996. The cubic root of 1444285730 is about 1130.3624101877.

The spelling of 1444285730 in words is "one billion, four hundred forty-four million, two hundred eighty-five thousand, seven hundred thirty".