1449538918 has 16 divisors (see below), whose sum is σ = 2298841920. Its totient is φ = 683594856.

The previous prime is 1449538907. The next prime is 1449538921. The reversal of 1449538918 is 8198359441.

It is a super-2 number, since 2×1449538918² = 4202326149593221448, which contains 22 as substring.

It is a congruent 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, 75396 + ... + 92647.

It is an arithmetic number, because the mean of its divisors is an integer number (143677620).

Almost surely, 2^1449538918 is an apocalyptic number.

1449538918 is a deficient number, since it is larger than the sum of its proper divisors (849303002).

1449538918 is a wasteful number, since it uses less digits than its factorization.

1449538918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168291.

The product of its digits is 1244160, while the sum is 52.

The square root of 1449538918 is about 38072.8107446771. The cubic root of 1449538918 is about 1131.7312117010.

The spelling of 1449538918 in words is "one billion, four hundred forty-nine million, five hundred thirty-eight thousand, nine hundred eighteen".