1449645818 has 16 divisors (see below), whose sum is σ = 2194289664. Its totient is φ = 718230240.

The previous prime is 1449645797. The next prime is 1449645851. The reversal of 1449645818 is 8185469441.

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, 234953 + ... + 241043.

It is an arithmetic number, because the mean of its divisors is an integer number (137143104).

Almost surely, 2^1449645818 is an apocalyptic number.

1449645818 is a deficient number, since it is larger than the sum of its proper divisors (744643846).

1449645818 is a wasteful number, since it uses less digits than its factorization.

1449645818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7157.

The product of its digits is 1105920, while the sum is 50.

The square root of 1449645818 is about 38074.2146077894. The cubic root of 1449645818 is about 1131.7590318331.

The spelling of 1449645818 in words is "one billion, four hundred forty-nine million, six hundred forty-five thousand, eight hundred eighteen".