1416445981 has 8 divisors (see below), whose sum is σ = 1447704000. Its totient is φ = 1385429760.

The previous prime is 1416445963. The next prime is 1416446021. The reversal of 1416445981 is 1895446141.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1416445981 - 2⁷ = 1416445853 is a prime.

It is a super-2 number, since 2×1416445981² = 4012638434182104722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1416445181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48580 + ... + 72061.

It is an arithmetic number, because the mean of its divisors is an integer number (180963000).

Almost surely, 2^1416445981 is an apocalyptic number.

It is an amenable number.

1416445981 is a deficient number, since it is larger than the sum of its proper divisors (31258019).

1416445981 is a wasteful number, since it uses less digits than its factorization.

1416445981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120899.

The product of its digits is 138240, while the sum is 43.

The square root of 1416445981 is about 37635.7008836025. The cubic root of 1416445981 is about 1123.0523617496.

The spelling of 1416445981 in words is "one billion, four hundred sixteen million, four hundred forty-five thousand, nine hundred eighty-one".