1444336345 has 32 divisors (see below), whose sum is σ = 1831025664. Its totient is φ = 1092268800.

The previous prime is 1444336307. The next prime is 1444336363. The reversal of 1444336345 is 5436334441.

It is not a de Polignac number, because 1444336345 - 2⁹ = 1444335833 is a prime.

It is a super-2 number, since 2×1444336345² = 4172214954975918050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1635274 + ... + 1636156.

It is an arithmetic number, because the mean of its divisors is an integer number (57219552).

Almost surely, 2^1444336345 is an apocalyptic number.

It is an amenable number.

1444336345 is a deficient number, since it is larger than the sum of its proper divisors (386689319).

1444336345 is a wasteful number, since it uses less digits than its factorization.

1444336345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153.

The product of its digits is 207360, while the sum is 37.

The square root of 1444336345 is about 38004.4253344265. The cubic root of 1444336345 is about 1130.3756145520.

The spelling of 1444336345 in words is "one billion, four hundred forty-four million, three hundred thirty-six thousand, three hundred forty-five".